If you watch the Ten Commandments backward its a movie about how much the former NRA president dislikes the Jewish People and his plot and machinations to enslave them...
If you watch Seven Samurai backward you see samurai resurrected and joining the others in the middle of a village battle which suddenly ends and they leave the village and wander the streets in poverty.
if you watch gone in sixty seconds backwards a guy runs froms the cops to return a bunch of stolen cars to their rightful owners. funnily enough though, the movie is still way too corny.