Answer by Aryan Jakhar:
The Film didn't use green screens.
The dream stage, in which they're in the hotel and Arthur is seen fighting the security, the room was rotating in reality too, as to give a real effect.
Quentin Tarantino, the director of the film, introduced a new brand of cigarettes 'Red Apple Cigarettes' for this movie and his other films. You might recall Bruce Willis asking for a 'pack of red apples' in the movie.
Darth Vader has only 12 minutes of screen time in the original Star Wars.
The Dark Knight
Michael Caine actually had lines in this sequence, but it was the first time he saw Heath Ledger in character and he completely forgot to say them!
David Fincher claimed in an interview in UK film magazine Empire, that there is a Starbucks coffee cup visible in every shot in the movie.
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