I'm going with movies that I enjoy to watch stoned-- not necessarily the stereotypical stoner movies revolving solely around drug-related shenanigans. Hope the list doesn't disappoint, and I'll be glad to add more later as I think of them.
Hitchhiker's Guide to the Galaxy (on the off chance you've never seen it)
Green Street Hooligans (follows Elijah Wood getting kicked out of an Ivy League school, moving to England with his sister and falling in with his brother--in-laws group/"gang" of soccer hooligans-- despite it uncharacteristically portraying Elijah Wood as a badass towards the midway point, it actually is one of my favorite movies ever)
No Country For Old Men (slow, quiet movie with a whole lot of WTF moments)
Triangle (2009) -- it's kind of weird but it's a mindfuck of a movie when you're high
anything Kevin Smith-- Dogma, Clerks 1 and 2, Jay and Silent Bob Strike Back, can't forget MALLRATS-- any Kevin Smith production
Jeff Who Lives at Home
Scott Pilgrim Vs. The World (again, on the off-chance you've never seen it)
Warrior (MMA fight movie-- SO LEGIT IT'S RIDICULOUS)
City of God (subtitles, set in Brazil, follows two characters from homeless, parentless childhood in the extremely dangerous favelas of Rio di Janeiro as they grow into basically the top guys who run shit in the city. Another absolute favorite of mine, you just have to be good with the subtitles)
Next Day Air -- Funny hood movie co-starring Avon Barksdale from the Wire. Worth a watch.
Snow on tha Bluff - This one's 50.50. It's a hood movie using the whole "found footage" formula. It.... Fuck, man, it's hard to explain. It's for a very specific kind of audience, though, so... here, I'll put up a trailer and let you decide for yourself if it's something that looks retarded to you or something you'd like. Personally? I fuck with it even though I thought a lot of what went on was really, really fucked up.
Trailer: