Looking for a good cult-clic film?

I'm a fan of Stanley Kubrick films such as A Clockwork Orange, The Shining, Full Metal Jacket. I also like the old Roman Polanski films such as The Tenant, Fearless Vampire Killers, Repulsion. The Legend of Hell House is also a favorite of mine. So any suggestions in this sort of genre would be welcome, even if it's a newer movie, though I preper the 1950-80 era.