Category "the-day-the-earth-stood-still"

Is this Morse code?

In the original version of The Day the Earth Stood Still (1951), there is a scene late in the film in which Klaatu (Michael Rennie) communicates with the robot

Why was Klaatu unsure about his own spaceship controls?

In The Day the Earth Stood Still (1951), Bobby asks Klaatu how the spaceship works. But Klaatu responds with I imagine(with doubt): Bobby: What do you thin