2. 'Purple Rain' (1984)
When it comes to rock & roll myth-making at the movies, you can't get any purpler than this. The plot is your standard melodrama about a struggling musician with girl troubles, except this guy happens to be Prince, right at the moment when he's on a historic creative streak. And to tell this story, he's writing songs like "When Doves Cry" and "The Beautiful Ones" and oh, yes, "Purple Rain." It's an epic celebration of everything rock & roll, which means sex and religion and eyeliner and motorcycles and guitars and Lake Minnetonka.