Suggest me a movie to watch, Thanks.?

Requiem for a dream (Sad, but one of my favorites), 25th hour, snatch, resevoir dogs, dog day afternoon, italian job, fight club, body of lies, the kingdom, gangs of new york, no country for old men, 3:10 to yuma, seven, fight club, the departed, the guardian, pulp fiction, get shorty, be cool, lock stock & two smoking barrels, the big lebowski, the dark knight, goodfellas, memento, american history x, sin city, v for vendetta, crash, 21 grams, traffic, blow, mystic river..........