In "The Truman Show," there is a part where Truman is next to another guy, talking to him while the guy is loading the candy machine. He puts in a yellow candy. The shot cuts away to another thing then back to the candy, which is now brown. The candies around it, though, are actually still yellow. Then it cuts away to just them, then back to the candy machine where he finishes loading it, and the candy is now yellow again.