FYI: the year is determined by the US theatrical release date. That’s why Beginners & Boonmee are on here (for example).
Aside from the top 20, here are some honorable mentions:
Another Earth, Kung Fu Panda 2, Restless, Rango, Rise of the Planet of the Apes, Drive, Hobo with a Shotgun, The Green Hornet, Tucker & Dale vs. Evil