Dead Poet's Society is ace!

And you should also see:
-The Shawshank Redemption (prison-break type thing)
-Apt Pupil (Nazi mind-fuck)
-Sin City (brilliant cinematography, blood, death, revenge, love)
-Donnie Darko (this one's quite bizarre, not quite sure if it's your thing)
-Oldboy (OMG brilliant film, twisted revenge)

There are so many, I keep thinking of more brilliant ones to recommend!