Well besides Kalifornia, seven, fightclub and snatch i can't think of any good movies he was in until Inglorious Bastards. Maybe that's what made him so depressed putting out all those stupid movies for awile.
He never said weed made him depressed but this article just says he was depressed cause of weed. Couldn't have been from laying around the house pissed off with himself could it now? Granted since he could bang any woman in the world i can't understand what he would be depressed about. Most guy's would give atleast their left nut to be in his position