The Spaceman from Pluto
Time travel flicks like The Final Countdown, Time Bandits, and Somewhere in Time were all box office failures, which reportedly led at least one studio executive to an anxiety induced last minute suggestion. Sid Sheinberg has since denied thinking it was a good idea, but producer Steven Spielberg contends that the executive very seriously introduced the idea of retitling the movie to Spaceman from Pluto. (Darth Vader from Vulcan would have undoubtedly been a more expensive proposition.) Other reports contend that Sheinberg was more concerned about the chimpanzee.
Yes, there was almost a chimp in Back to the Future.
The original script gave the Professor, later changed to Doc, a chimp named Shemp. Thank you, studio executive, for making sure we got the lovable Einstein, instead.
Doc Brown's Tribute to Doctor Strangelove.
There's a Stanley Kubrick Easter Egg in Doc Brown's garage. A label on the amplifier reads CRM 114 - the same name as a piece of equipment in Doctor Strangelove.
The Power of Love.
Huey Lewis, who sings the hit soundtrack songs "Back in Time" and "The Power of Love," plays one of the judges who is unimpressed by Marty's flashy guitar shredding. Huey Lewis and the News turned down an offer to write the theme song for Ghostbusters. Legend has it that Ghostbusters producers played "I Want a New Drug" by Lewis to Ray Parker Jr. and asked him to write something similar. Ghostbusters certainly does sound similar. The two songwriters reached an out of court settlement in 1995.
'To Be Continued...' was not seen in theaters.
Chalk it up to the "Sinbad made a genie movie" phenomenon, but no mater how many people claim otherwise, the phrase "TO BE CONTINUED" that appears after the DeLorean goes into the future simply was not seen in theaters. It wasn't added to the end of the film until the home video release.