What movies have made a cultural impact to North American society.?

I moved to Canada and i was hoping to truly understand north american culture. obviously i interact with people, but i was hoping if someone could tell me famous movies and songs that have made a cultural impact. for eg. godfather 1 and 2. the movies don't have to be critically acclaimed like godfather.What movies have made a cultural impact to North American society.?Saturday Night Fever spawned a disco craze.



Urban Cowboy spawned a cowboy honky tonk mechanical bull riding craze.



Cocktail spawned a period when pairs of bartenders were juggling bottles between them.



American Graffiti spawned a 50's theme day at high schools across the country. The impact lead to years of the sit-com Happy Days.What movies have made a cultural impact to North American society.?Bruno, Ali G and Borat.What movies have made a cultural impact to North American society.?Dr Strangelove or How I learned To Stop Worrying And Love The Bomb