Being There
Grandma's Boy
Others have added many of the same that I would also, so I'll keep to just these two. They are two of my favorites. One serious/semi-serious, one comedy. There's something special about Being There for me. Maybe it's that I consider myself a simpleton like Peter Seller's character, I don't know. Grandma's Boy, with its theme of video games and weed smoking, is also right up my alley! Too funny!