Many of the credits are deliberately comic.
Despite the credit listing "J. Fred Muggs as Zip the Chimp," J. Fred Muggs does not appear and the only chimp in the film is a stuffed toy.
The ending is a deliberate parody of 2001: A Space Odyssey.
Inspired by the work of underground cartoonist Robert Crumb.
Frank Stin (who plays the Android) is a pun on Frankenstein.