Its the Superfly soundtrack from Curtis Mayfield. (The benefits of a memory and thousands of pop quizzes are coming back to me-or as my wife would say "whatever"!!)
I said Grease! I did!!! Yay!! My first thoughts were Dirty Dancing or Chicago or something, but then I thought maybe it was Grease. I don't actually own any of it, I used to have the CD but it was stollen!!