If you watch the movie Jaws backwards, it's about a shark that keeps throwing up people until they have to open a beach, not to mention the shark saves a sinking boat by putting it back together with its mouth and saves a naked woman from drowning.
If you watch Rambo backwards, it's Sylvester Stallone healing people with his magical bullet vacuum and repairing helicopters with nothing but a bow and arrow.
If you watch the Lord of the Rings trilogy backwards, it's a saga about a little guy who gets a cool ring from a volcano and spends the rest of the films walking home.
If you watch Alien backwards, a large extra-terrestrial monster gets tiny and climbs inside a guy's chest, calming down a panicky spaceship crew.
If you watch The Karate Kid backwards, it's about this karate champ that just kinda slowly becomes a wimp and ends up moving back to Jersey.
If you watch Batman Begins backwards, it's about a lunatic vigilante who prances around in a bat suit until he's cured by being trapped in a well with hundreds of bats.
If you watch Blade Runner backwards, it's about a guy who helps replicants get their lives together so that one of them can get a job interview and then he (the guy) enjoys a bowl of noodles.
If you watch Star Wars backwards: Luke makes a harrowing escape from the Death Star, which has formed instantly from fiery clouds. He later returns there to imprison his sister, for which he is taken to a pub, abandoned in the desert by an old man, and beaten by sandpeople. He retires as a farmer, de-vaporating moisture.
If you watch King Kong backwards, it's about a giant monkey that runs around fixing buildings and planes until they capture him and sends him off to an island full of dinosaurs.
If you watch Neverending Story backwards, it's still only an hour and a half long.