When you share the same sound effects library: Just noticed that the 1976 film "At the Earth's Core" uses the same sound effect that "The Prisoner" (1967) used for the sound of Number 6's door automatically closing.
@lauren First time I ever noticed overlap like that was in Bungie's *Marathon*. They used the most sci-fi generic hydraulic lift sound for big elevators, and it's pretty much everywhere. I think it's even in the first *Alien* movie.
