If could save a movie by decade which would be?

1900's: Voyage to the moon
1910's: The Cabinet of Dr. Caligari
1920's: Metropolis
1930's: Modern Times
1940's: Citizen Kane
1950's: Ikiru
1960's: La Dolce Vita
1970's: A Clockwork Orange
1980's: Terry Gilliam's Brazil
1990's: Silence of the Lambs
2000's: The Man Who Wasn't There