Anything with Rudolf Valentino in it. Women committed suicide when he died.
The first "talky". ("Garbo speaks!")
"Gone With the Wind". The first epic.
"Casablanca". ("Here's looking at you, kid".) America is the good guy in a war it has yet to enter.
"On The Waterfront". Elia Kazan and gritty realism.
"Giant". "Rebel Without a Cause". Brando, James Dean and disillusioned youth.
"Shane". The mythology of the West at its height, with a bad guy - a gunfighter - who is a good guy.
"The Good, the Bad and the Ugly". "Once Upon a Time in the West". Spaghetti westerns, Clint Eastwood and the rise of the antihero.
"Dirt Harry". The right strikes back. Libs are "owned".
"Star Wars". Comics as block busters. Forty years on and still going.
"Rambo". The right re-writes the debacle of Vietnam.
"Pulp Fiction". The mark of Tarantino. Psychopaths, mobsters, and violence made fun. Everything that is wrong with America today.
Everything since has been a rehashing of formulas with more special effects.