[psycho d]

Lookin to make a list of what i think of as "heavy" flicks, the kind that are very well done, artistic, and philosophic but disturbingly difficult to watch because they reveal that which we'd rather keep bottled up. So far all i have really come up with are:

I Stand Alone
Irreversible
Requiem for a Dream
Strange Circus

Others that might approach this genre might include:

Calvaire
Clockwork Orange
Noriko's Dinner Table
Kairo
American History X
The Silence (Tystnaden)

i have yet to see Leaving Las Vegas, but i am guessing it may be a contender as well. Any examples that are glaringly absent??? Thanks.
derek