One per director, in no particular order.

Taratino - Pulp Fiction
Darabont - Shawshank Redemption
Spielberg - Schindler's List
Zemeckis - Forrest Gump
Nolan - Memento 
Coppola - Apocalypse Now
Lucas - American Graffiti (severely overshadowed by Star Wars and Indiana Jones)
Kubrick - Clockwork Orange (overshadowed by FMJ and Space Odyssey)
Weir - Master and Commander
Bigelow - Hurt Locker