Marlon Brando in The wild one and the whole leather jacket and white t-shirt with jeans biker look.
Alain Delon in
Le Samurai influencing (among others) John Woo in
A better tomorrow (1-2) and
The Killer influencing Quentin Tarantino in
reservoir dogs and
pulp fiction and the whole assassin in shades, elegant suit and tie and trenchcoat smoking a cigarette look.
La dolce vita for the indolent, decadent aristocratic look you see lots of fashion houses putting forward and those amazing sunglasses.
Blow Up for promoting the mod look.
Woman in the dunes, I don't think this had an impact on the general public but the sheer sensuality with which Teshigahara shot sand covered skin and his esthetic choice to focus on tactile sensation (you almost want to run your hand along the screen to "touch" the movie) certainly had a great impact on fashion photography. See all modern beach shots for exemple.
TrainspottingI can still remember how this movie helped swtich the focus from raver/clubber inspired outfits to punk rockish, dirty, thin heroin addict style.
Annie Hall: a women wearing a ralph Lauren wardrobe intended for the boys, might not be up to "Le smoking" level but still had a pretty big influence. And who doesn't love a women who's as affraid of lobsters as you are
To catch a thief: had to include some Cary Grant in there, oh yeah Grace Kelly played in that movie too. Grant is considered, among suit-loving circles, to have been the best dressed man ever.
and Pretty in Pink for the same reason.
