I was blazed last week and my friends and i were watched Super Troopers. Oooo my god that first scene with the stoners i was fuckin cracking up. I seriously have never laffed so hard when i was high.

Other good stoner flicks:
Dazed and Confused
Fast Times at Ridgemont High
Harold and Kumar go to White Castle
Kill Bill 1&2
Boondock Saints
Any movie with titties in it