
There's no shortage of aesthetic and cultural upheavals that rocked the American film industry in the 1970s, but the most important from a sociological standpoint absolutely has to be the sudden discovery made by the studios early in the decade that nonwhite people liked to watch movies, too. A lesson that has been forgotten and relearned and forgotten again in a depressing cycle over the intervening 40 years (just look at the eye-popping shock in...