Report Card: Forbidden Planet

Forbidden Planet is an influential film not just because of its positive audience reaction and later cult success, but also because Gene Roddenberry has stated that it deeply influenced his massive science fiction property Star Trek, in look, general plot structure, and even some of the same effects.

The film is also notable for the introduction of Robbie the Robot, an anthropomorphic robot who was such a hit (and so expensive for MGM to create) that he warranted a follow-up movie all to himself, and inspired the creator Robert Kinoshita to make a similar robot for the long-running family-friendly serial Lost in Space.

But as much as we adore the nostalgic themes and effects, and as much as we recognize the influence of the film, our review must be of its interfaces, and for that it does not ultimately fare well.

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Worst. Self-destruction mechanism. Ever.

When Morbius has taken a mortal wound from his monster and destroyed his “evil self,” he realizes that mankind is not ready for the power available to him through the Krell technology. Without explaining what he’’s doing, Morbius instructs Adams to “turn “that disc”.” Adams mindlessly obeys, and a plunger emerges from the floor near him.

Adams initiates the irreversible Krell self destruct mechanism.

Morbius commands Adams, ““The switch, throw it.”” Again, Adams does as he’’s told, and the plunger clicks into place as a red ring (the same red ring below the educator lever) illuminates. Then, and only then, Morbius explains that, ““In 24 hours you must be 100 million miles out in space. The Krell furnaces’ …chain reaction……they cannot be reversed.”” You think that with that kind of finality, he might have bothered to explain what was going to happen, or inquire whether the crew could make it out that far in that amount of time, but you know, science knows best.

The krell self-destruct warning signal is a silent, blinking red ring around the plunger.

Adding insult to injury, the complete warning system for this massive, solar-system-sized explosion consists of, in total, a silently pulsing red ring around the base of a plunger located in the heart of a hidden underground city behind a series of impenetrable doors sealed with combination locks. There is no klaxon, no lights seen elsewhere to indicate that your star system is about to go boom. I guess if you didn’’t know, you didn’’t really need to know.

The Monster from the Id

The plastic educator has a side effect that serves as the mystery at the dark heart of the film. Use of the device gives rise to ““monsters from the id,”” which manifest while the user is asleep and attack the sleeper’’s enemies. Our first clue to the origins of the monster appear when Morbius explains the Krell gauges.

The encyclopedia registers a negligible amount of power.

“Gauges line the curving walls of the lab in stacks of two,” Morbius explains, ““Their calibrations appear to indicate that they are set in decimal series, each division recording exactly ten times as many amperes as the one preceding it. Ten times ten, times ten, times ten, times ten, times ten, on and on and on, row after row, gauge after gauge.””

He turns on the encyclopedia and a small bit of light appears on the first gauge. He turns on the plastic educator and the gauge shows a little more.

Asleep, Morbius’’ id manifests as a horrible monster.

This explanation helps to set up the awesome power of Morbius’’ monster when we see Morbius sleeping in the lab, and sixteen of the gauges are lit up. (It’s 10^16 times more powerful than an encyclopedia.) We know the (then) unbelievable technologies showed the barest sliver of a reading, and here they are blasting power to…somewhere.

After waking, both Morbius’’ monster and the power gauges fade.

The connection is severed as Morbius awakens, and within seconds the monster fades and the gauges behind him dim one by one.

Adams wrestles Morbius into the seat of the educator.

This dramatic link is underscored when the monster has come into the underground city to destroy Morbius, Adams, and Alta. As Adams wrestles Morbius down, we hear the angry pounding of the monster against the vault like doors, and see the gauges glowing and fluctuating wildly in the background.

The plastic educator

Dr. Morbius introduces the Krell “plastic educator,” saying, ““As far as I can make out, they used it to condition and test their young, in much the same way as we once employed finger painting among our kindergarten children.””

Morbius grasps the educator’s head mount.

The device is a station at which the learner sits. There is a large dashboard before him, in turn before a space enclosed in a tetrahedral encasement of plastic. To his right is a large column made of plastic with red and yellow graduations running up the side. Inside the column is a strange shape like a lathed accordion, terminating in a pulsing ring that indicates a level against the graduations. An arced panel hangs from the ceiling with other printed graduations with lines of light above and below. Blue neon squiggles blink randomly along the walls.

Morbius demonstrates proper placement of the educator interface.

To activate the station, the learner grasps a pair of curved metal arms, which are connected at a hinged base and tipped with crystal orbs. He leans forward, rests his forehead on a third arm, and pulls the pair of arms to rest on his temples. He turns a pair of dials on the dashboard before him, and the crystal orbs on all three arms glow, indicating that the headset is operational.

Morbius points to the intelligence indicator.

Adams and Doc try to guage their own IQs.

The device’’s immediate result is that the accordion shape inside the column rises such that the lit ring indicates the intelligence of the user. (To Adams’ and Doc’’s dismay, their readings are much lower than Morbius’.)

With the press of a lever Morbius manifests a thought visually.

The primary function of the device is for the user to make a thought of theirs manifest in the tetrahedral space. The user concentrates on the thing, and then pulls a lever at the base of the headset. A red ring at the base of the headset illuminates, and a material appears above a pedestal at the base of the tetrahedron. By concentrating, the user shapes this material into the desired thing. Morbius shapes it into an image of Alta. The image is a scaled, translucent, volumetric display of Alta, which moves and smiles just as she would.

The projection ceases immediately when the mechanism is removed.

To stop using the device and shut down the projection, the learner simply lifts the lever and removes the headset from contact, and the orbs, the red ring, and the volumetric projection all fade within moments.

Finished with his demonstration, Morbius turns the educator off.

Turning the dashboard off requires a user to turn two free-spinning dials that sit to each side of the headset inwards. The lights of the dashboard fade.

Fan theories: TCitW “customers”?

We interrupt the Forbidden Planet to ask a question of fans of The Cabin in the Woods:

When Sitterson and Hadley are desperately waiting to see if Jules will take off her shirt, Truman the security guard says, “Does it really matter if…?” Hadley interrupts him to to say, “We’re not the only ones watching, kid.” Sitterson adds, “Got to keep the customers satisfied,” before turning to look at Truman and confirm, “You understand what’s a stake here?”

My question is: Who do you think the (diegetic) “other ones” watching are? Is it other control rooms? Why would they care? Is the Old Ones? Really? They have TVs in their sleeping chambers? Who else might it be?

If you have ideas, drop them on the page with the comment feature. We’ll return to our regularly scheduled Krell technology tomorrow.

Krell technology

Morbius is the inheritor of a massive underground complex of technology once belonging to a race known as the Krell. As Morbius explains, ““In times long past, this planet was the home of a mighty and noble race of beings which called themselves the Krell….”

Morbius tours Adams and Doc through the Krell technopolis.

“Ethically as well as technologically, they were a million years ahead of humankind; for in unlocking the mysteries of nature they had conquered even their baser selves… “…seemingly on the threshold of some supreme accomplishment which was to have crowned their entire history, this all but divine race perished in a single night.

““In the centuries since that unexplained catastrophe even their cloud-piercing towers of glass and porcelain and adamantine steel have crumbled back into the soil of Altair, and nothing——absolutely nothing——remains above ground.””

Despite this advancement, unless we ascribe to the Krell some sort of extra sensory perception and control, much of the technology we see has serious design flaws.

Morbius plays half-a-million-year-old Krell music.

The first piece of technology is a Krell recorded-music player, which Morbius keeps on the desk in his study. The small cylindrical device stands upright, bulging slighty around its middle. It is made of a gray metal, with a translucent pink band just below the middle. A hollow button sits on top.

The cylinder rests in a clear plastic base, with small, identical metal slugs sitting upright in recessions evenly spaced around it. To initiate music playback, Morbius picks one of the slugs and inserts it into the hollow of the button. He then depresses the momentary button once. The pink translucent band illuminates, and music begins to flow from unseen speakers around the office.

Modern audiences have a good deal of experience with music players, and so the device raises a great many questions. How does a user know which slug relates to what music? The slugs all look the same so this seems difficult at best. How does a user eject the slug? If by upending the device, one hopes that the cylinder comes free from the base easily, or the other slugs will all fall out as well. It must have impressed audiences to see music contained in such small containers, but otherwise the device is more attractive than usable.

Morbius inputs the combination to open the door.

Many Krell doors are protected by a combination lock. The mechanism stands high enough that Morbius can easily reach out and operate it. Its large circular face has four white triangles printed on its surface at the cardinal points, and other geometric red and yellow markings around the remainder. A four-spoke handle is anchored to a swivel joint at the center of the face. To unlock the door, a user twists the handle such that one of its spokes lines up with the north point, and then angles the handle to touch the spoke to the triangle there, before returning the handle to a neutral angle and twisting to the next position in the combination. When the sequence is complete, the triangles, the tips of the spokes, and a large ring around the face all light up and blink as the two-plane aperture doors slide open.

Even Walter Pigeon has trouble making sense of this awkward device. There appear to be no snap-to affordances for the neutral angle of the handle or the cardinal orientations, leaving the user unsure if each step in the sequence has been received correctly. Additionally, if the combination consists of particular spokes at this one point, why are the spokes undifferentiated? If the combination consists of pointing to different triangles, why are there four spokes instead of one? Is familiarity with some subtle cue part of the security measures?

Morbius shares operation of the Krell encyclopedia.

All of Krell wisdom and knowledge is contained in a device that Morbius shows to Adams and Doc. It consists of an underlit scroll of material sliding beneath a rectangular hole cut in the surface of a table. To illuminate it, Morbius turns one of the two ridged green dials located to the left of the “screen” about 45 degrees clockwise. To move the scroll, Morbius turns the other green dial clockwise as well.

Why is the least frequently used dial, i.e. the power button, closer than the more frequently used button, i.e. the scroll wheel? This requires the reader to be stretched awkwardly. Why is the on-off dial free spinning? There appear to be only two states: lit and unlit. The dial should have two states as well. If the content of the pages is discretely chunked into pages, it would also argue for a click-stop rather than free-spinning dial as well, but we do not get a good look at the scroll contents. One might also question the value of a scroll as the organizing method for a vast body of information, since related bits of information may be distractingly far apart.

(Other) Morbius technology

Aside from Robbie, we see two other instances of Morbius’’ post-Krell inventions, each of which is lacking in its own way.

A tossed orange demonstrates the very dangerous disposal system.

The first is the disposal, which is housed in a cylindrical nook off of the living room. The smooth walls of this nook are covered in the same metallic, cupric material as a short pedestal seated within. When something is tossed into the nook above the pedestal, it is instantly disintegrated in streaks of green-white energy. There is no indication that the device can distinguish between garbage to be disintegrated and, say, human flesh, but even if it can, the utter irreversibility of the action begs for some additional step of confirmation and safety.

Commander Adams discovers Morbius’’ hidden door.

The second is the secret door from Morbius’’ study to the Krell complex. It is a recessed stretch of wall off of the living room. Adams discovers it accidentally when he approaches and to his amazement, it slides open by dint of his mere proximity. If this is meant to be either secret or secure, it fails on both counts.

Handwave switches

Much of the control of Morbius’’ highly technological house is given to wave-over switches. These devices sit on the tops of tables, and illuminate briefly when they detect a hand moving above them. Each is keyed to a different job.

Alta must “beam” Robbie several times before he arrives.

One of these devices summons Robbie. After waving her hand several times over it, Alta expresses her frustration when Robbie finally arrives. ““Where have you been?”” she asks, ““I’’ve beamed and beamed.”” It hints at the need for some feedback from Robbie that he has heard the summons and is coming.

With a wave of his hand Morbius activates the security shutters around his house.

Another hand wave device closes or opens the protective metal shutters that seal Morbius’’ house.

To see the outdoors better, Morbius waves off the indoor lights.

Another one allows him to turn off interior lights, which he uses in the film to see what is approaching so noisily.

One interesting fact of these interfaces is that they lack any affordance for their cause and effect. How is a new user meant to know to wave? How would she know what would happen as a result? Though this is generally inadvisable, we can imagine that Morbius only ever planned for he and Alta to use it.

Robbie the Robot

Dr. Morbius creates Robbie after having his intellectual capacity doubled by the Krell machines. The robot is a man-sized, highly capable domestic servant receiving orders aurally, and responding as needed with a synthesized voice of his own.

Robbie exits the cockpit of his vehicle.

Robbie invites the men inside.

Robbie first appears steering a special vehicle to pick up the officers. It is specially built for him, accommodating his inability to sit down. From this position, he can wirelessly maneuver the vehicle, and even turn his head around to address passengers.

Robbie fires Adams’’ sidearm.

Despite his having only two wide, flat fingers on each hand, he is able to grasp and manipulate objects as a human would. To demonstrate this, Morbius has him aim and fire Commander Adams’’ weapon at a nearby tree. How he pulled the trigger is something of an unanswered question since his hands are hidden from view as he fires, but he does so all the same. This makes him quite useful as an interface, since he is able to use any of the devices already in the environment. Additionally, should he become unavailable, humans can carry on in his absence.

Alta thanks Robbie for offering to make her a new dress.

Given that he must interact with humans, who have social needs, his stature helps ingratiate him. In one scene Alta wishes to express her gratitude for his promise of a new dress, and she gives him a hug. Though he does not hug back, she still smiles through and after the expression. Had he been less anthropometric, she would have had to express her thanks in some other way that was less pleasant to her.

Robbie warms the coffee for Alta and Farman.

In addition to being physically suited for human interaction, he is quite socially aware and able to anticipate basic human needs. In one scene, as Lt. Farman walks with Alta towards a cold pot of coffee, without having been asked, Robbie reaches down to press a button that warms the coffee by the time the two of them arrive. He also knows to leave immediately afterwards to give the two some privacy.

Despite these human-like qualities, some of his inhuman qualities make him useful, too. He is shown to be incredibly strong. He is tireless. He can synthesize any material he “tastes.”

With eyes behind his head, Robbie shoos a pesky monkey.

He even has “eyes in the back of his head,” or a 360-degree field of vision for surveillance of his surroundings. In one charming scene he combines this observation with small nonlethal lasers to shoo away a pesky monkey trying to steal fruit behind his back.

Morbius shows Robbie’’s “sub-electronic dilemma” when asked to harm a human.

Addressing safety concerns, Robbie is built to obey Asimov’’s first law of robotics. After having his creator instruct him to point a weapon at Adams, and “aim right between the eyes and fire,” Robbie’’s servos begin to click and whir noisily. His dome glows a pinkish-red as blue sparks leap across it. Morbius explains, ““He’’s helpless. Locked in a sub-electronic dilemma between my direct orders and his basic inhibitions against harming rational beings.”” When the command is canceled, the sparks stop immediately and the red fades over a few seconds.

This failsafe seems quite serious, as Dr. Morbius explains that if he were to allow the state to continue, that Robbie would “blow every circuit in his body.” Since the fault of such a state is with the one issuing the command and not Robbie, it seems a strange design. It would be like having your email server shut down because someone is trying to send an email infected with a virus. It would make much more sense for Robbie to simply disregard the instruction and politely explain why.

Microfiche reader

One other portable device that bears mention is Lt. Farman’s microfiche reader.

Farman checks Morbius’’ information.

When the officers originally learn Morbius’’ name, Farman fetches the device from a drawer. It is a small, metallic square box about the size of a pack of playing cards. He withdraws one of a set of thin transparent sheets of microfiche held in a pocket on the back, and inserts it to a slot at the top of the device. The device magnifies the contents of the sheet for the viewer, who can scroll by pulling the microfiche up and down. The particular microfiche displays all of the manifest information from the Bellerophon expedition, which Farman uses to verify Morbius’ information.

Farman looks for Julia Marsin on the Bellerephon’s manifest.

Farman uses an even smaller version of this device in the field, which consists of a small, lipstick-sized cylinder with a slit, through which he passes the same film to check for a “Mrs. Morbius.”

Though this seems like miniaturization that is far ahead of its time, microforms and optical magnification had been around and used to compactly store data since the mid 1800s. This device is an extension of these optical concepts, rather than modern digital media which only reached similar portable sizes in the early 2000s.