Pineapple Express was great...as was "Super"...very funny middle part of that film havent laughed that much in a long time, and its just plain stupid
Another of my favourites is Grandma´s Boy, very funny...seen it about 5 times and still very funny (only film I have watched twice in one week)
You should also check out Community, its a series and its so god damn funny! And for a more serious series watch Dexter, favourite thing i have ever seen ever...period, got some dark humour in there too
But be warned you will become addicted, every person I have reccomended it to got obsessed with it (as did I) and ended up watching the first 2 series within a month LOL so be warned...eagerly awaiting season 7 now
I wished someone had reccomended it to me before last year!
That should sort you out for a while haha
If not give breaking bad a watch...almost as good as Dexter IMO but not quite
I know i went a little off topic but some GREAT shows i just couldnt leave out if you havent seen them!