1950s – 70s

From great novels 
John Steinbeck’s East of Eden

From Thomas Berger’s Little Big Man , US ,1970

Comedy
M*A*S*H

Dr. Strangelove

Suspense & Social films

Easy Rider

Shaft

Island in the Sun

Westerns
The Man who Shot Liberty Valance

The Good, the Bad and the Ugly

Science fiction
The Day the Earth Stood Still

Many of the great science fiction clunkers of the era have been re-introduced through Mystery Science Theater 3000 /  See an MST3K primer  by Forces of Geek