Memento is a brilliant movie one of my favorites! If you like this movie or the way it was shot then you
MUST GET (doubt if you can rent it) this French movie recently released called
Irreversible...it uses the same type (or somewhat the same) of direction Momento used. This movie is very dark and disturbing, I don't want to give away too much so check out the web site:
http://www.irreversiblethemovie.com/
Some other movies that I liked is another French movie called
Man Bites Dog...rent it if you can find it and you will see a very dark and disturbing comedy (if you want to call it that) about a filmmaker doing a documentary on a day(s) in a life of a killer.
The Usual Suspects is a masterpiece! The movie just rocked my ass and I still don't go a year before I pop that DVD in the player.
OH yeah other movies (what I like to call mind fuck movies):
Requiem for a Dream, Believer (rent this if you haven't story about a Jewish kid who becomes a Nazi skinhead, the lead actor is simply amazing!), American History X (along the same lines as Believer but with a bigger cast), The Game (with Pean And Douglas), Cube (cool indie flick), Naked Lunch (trippy), American Psycho (you all love this right
), Snatch (hillarious), Fight Club, Donnie Darko, Sixth Sense, ExistenZ, 12 Monkeys, Pi, Vanilla Sky (not as good as the Spanish version), Full Metal Jacket,The Others, Brazil, The Bad Lieutenant, Primal Fear, (My Nicolas Cage collection)Leaving Las Vegas, Bringing out the Dead, Vampires Kiss, 8MM(good flick), Birdy, Wild at Heart....anyway some in there should help you out!
Also anything by The Brothers Quay, check them out especially if you like movies like Eraserhead or David Lynch.