Bad Lieutenant is so great! So is Bad Santa and Fight Club!
Those are 3 of the best movies ever!
I like Eternal Sunshine of the Spotless Mind, Stay (2005), and The Dark Knight as well. Also I love Hostel all the movies. But my all time favorite has to be this:
https://www.amoeba.com/admin/uploads...r-Italian.jpeg
I've never seen a more fucked up movie than this one...