If you watch this movie backwards...

[Rainbow Dash]

If you watch Memento backwards, you get...

Hmm. Let me think of something else...

[CaptHayfever]

If you watch The Dark Knight backwards, Batman becomes accepted by the public and then saves a suicide jumper who then decides to become a happy clown that brings people back to life & returns lots of stolen goods.

And remember, "I'm-a Luigi, number one!"

[Calamity Panfan]

Toy Story 3:

[spoiler]A collegebound kid goes to a small girls' house and plays with her toys, then steals them. The toys escape, and then they have three aliens with them place them in an incinerator to put them out of their misery. They are then pulled away from it by some gravitational force brought onto them by an evil bear. They all go towards a day care center, in an elaborate entry plot. Woody goes to his previous owner's house but then goes back to the daycare center to get his friends. Meanwhile, the other toys are played by very abusive children. Woody returns and converts the bear to a very good person, and they enjoy a good life at the daycare for a short while. Then the mother of the thief takes them back. Eventually, they are returned to Andy from the previous two Toy Story movies.[/spoiler]

[Pixelated Penguin]

[QUOTE=Slaughterhouse-Five]American planes, full of holes and wounded men and corpses, took off backwards from an airfield in England. Over France, a few German fighter planes flew at them backwards, sucked bullets and shell fragments from some of the planes and crewmen. They did the same for wrecked American bombers on the ground, and those planes flew up backwards to join the formation.
The formation flew backwards over a German city that was in flames. The bombers opened their bomb bay doors, exerted a miraculous magnetism which shrunk the fires, gathered them into cylindrical steel containers, and lifted the containers into the bellies of the planes. The Germans below had miraculous devices of their own, which were long steel tubes. They used them to suck more fragments from the crewmen and planes. But there were still a few wounded Americans, though, and some of the bombers were in bad repair. Over France, though, German fighters came up again, made everything and everybody as good as new.
When the bombers got back to their base, the steel cylinders were taken from the racks and shipped back to the United States of America, where factories were operating night and day, dismantling the cylinders, separating the dangerous contents into minerals. Touchingly, it was mainly women who did this work. The minerals were then shipped to specialists in remote areas. It was their business to put them into the ground, to hide them cleverly, so they would never hurt anybody ever again.[/QUOTE]

If you read Slaugtherhouse-Five backwards, it's the same.*

Also, if you watch Primer backwards...

...what the hell was that?

*if you're from Tralfamadore

[Valigarmander]

If you watch Wall-E backwards, it's about fat humans who are taken from a desolate Earth, shot into space and brainwashed into being lazy and apathetic, and a romantic pair of robots who are separated to do menial labor.