Sally Potter:
L'Atalante
Battleship Potemkin
Citizen Kane
The Cranes Are Flying (Kalatozov)
Duck Soup
A Matter of Life and Death
M. Hulot's Holiday
The State of Things
The Third Man
The Wizard of Oz.

(Honorable Mention: Singin' in the Rain; My Friend Ivan Lapshin; Mirro; The Man in the White Suit; Bicycle Thieves; Visconti, Godard and "all of Indian cinema.")