You honestly prefer Kill Bill to Pulp Fiction?
It! The Terror From Beyond Space.
This is probably most famous for being a major influence on Alien but isn't up to much and certainly not as good as Alien.
Godzilla (1954)
This really is a masterpiece. Compared with where the Hollywood B-Movie was at the same time, Godzilla was light years ahead: relatively complex plot and some innovative camerawork; it's about as close to the Arthouse as any monster movie has got.