In American Psycho (2000) Willem Dafoe (Detective Kimball) acted each meeting with Bateman 3 ways in 3 different takes: 1. He knew Bateman was the killer, 2. He only suspected Bateman was the killer, 3. He did not suspect Bateman. These clips were later spliced together to keep the audience guessing
Star Wars (1977) originally had Red and Blue Squadron attacking the Death Star, but blue conflicted with the blue screens, so it was changed to gold. In Rogue One (2016), Red, Gold and Blue squadron attack Scarif, where Blue Squadron is destroyed, leaving them unavailable for the events in Star Wars
