--If you watch Batman Begins backwards, it's about a random dude who dresses up like a bat who fights crime and saves his city, before mysteriously disappearing for seven years so that he can go to a mountain temple and receive training to make himself worse at fighting. Sufficiently bad at fighting, he journeys to Chinese prison and gets beat up, before finally getting bored and returning to his city as a normal, very angry, dude.
--If you play Gears of War backwards, it's about a group of very manly doctors from the future who go around shooting Healing Science Bullets into the injured, bringing them instantly back to life. They also use their Adhesive Chainsaws to reattach some limbs.
--If you watch The Hangover backwards, it's about a bunch of guys to go to Vegas, leave their friend on a roof, then go through a bunch of crazy shit-Oh, wait.