Im looking for a good trippy movie?

I'm looking for a good movie that is something like Requiem for a Dream, Donnie Darko, or Stay. I want something depressing but with a great plot and not at all boring. I want a movie that will move me and make me feel something. Also keep it within the 90's or 2000's and not anything too common cuz ive probably already seen it...This would be really helpful (: