The Day the Earth Stood Still
From Memory Alpha, the free Star Trek reference.
The Day the Earth Stood Still was a science fiction film released during the mid-20th century. The plot centers on a fictional postulation of what humanity's First Contact with an alien race would be like. Although the alien that arrives on Earth is a benevolent ambassador with essentially peaceful intentions, the mass public reacts with hysteria and paranoia at his arrival.
This film was found in the motion picture library aboard the Enterprise in 2152. Commander Charles Tucker III was a fan of the film. He showed the movie to a cogenitor he made friends with, knowing that it would be the first movie the cogenitor would watch, after discarding western movies. (ENT: "Cogenitor")
While cooped up in the catwalk of Enterprise, Tucker presented The Day the Earth Stood Still for movie night on a monitor in compartment 5. (ENT: "The Catwalk")
[edit] Background
In reality, this film was directed by Robert Wise (1951) who also worked on The Andromeda Strain (1971) and Star Trek: The Motion Picture (1979), both of them also "first contact" situations.
It is interesting to note that although Klaatu's mission (the main character in the film) is to deliver to Earth a forceful warning against "extending your aggression beyond your planet," he asserts that those he represents have no interest in how humans manage their own affairs. This assertion is an early progenitor of Starfleet's eventual General Order 1.
Spanish title for the movie is Ultimátum a la Tierra (Literally "Ultimatum to Earth"), not being known for its original title. However, in the dubbed version of episode "Cogenitor", Tucker translates the original, literal title ("La Tierra Se Detuvo", literally "The Earth Stood Still").
Later, Tucker explains it is a fiction ("In fact, the Earth did not stand still"), keeping the literal translation, but adding confusion to a Spanish-speaking audience that could not be familiar with the original title.
Lawrence Dobkin, who directed TOS: "Charlie X" and guest-starred in TNG: "The Mind's Eye", appeared in this movie as one of Klaatu's doctors.
