Keith got the first two easily, but not a single guess for the Understudy round. No lovers of The Crow, I take it.
Poster Scramble: I've scrambled the pieces of a movie poster, some pieces are even flipped around or upside down.
Title Swap: I've replaced the main words of a film title with synonyms.
Understudy: I've replaced the actors' heads in a screenshot with our avatars, much (read: exactly) like the old Invasion of the Lambs game at the LAMB.