Ah damn, that's a hard one. But based on the movies which I've watched in the past few months, I would have to say "The Hangover.
Marley and Me is a great movie. I have a yellow lab so this movie made me laugh very hard and then cry like a baby.
New Moon is now my favorite movie after watching. Actually I am not really fond of Twilight and I havent watch it before but after watching New Moon I bought books as well as waiting for another release of a new movie
The matrix is my all time fav..looking forward to prince of persia and avatar (yeah i havent seen it yet)
Scarface, Gladiator and the Godfather trilogy ...and the kite runner and downfall and the city of god and american beauty and .... i could go on forever ! there are just too many to mention, i just love movies and i probably would add a new fav every week
I like fighting and comedy stuff, so i mostly watch the movies of Jackie Chan as u got both things at the same time.