Round Midnight is excellent. Dexter Gordon starred in the movie, playing a character based on the life of Bud Powell and the Parisian who 'looked' after him, Francis Paudras. there's a bit of Lester Young in the main character as well. the real Francis Paudras has a couple of cameos in the movie. he's in the crowd scenes at the clubs. a young Jacky Terrasson also is in one of the crowd scenes as well, long before he became a well known name (at least in jazz circles).
all the music is played live, Tony Williams, Herbie Hancock, Billy Higgins, Bobby Hutcherson, John McLaughlin, Ron Carter, Freddie Hubbard, Cedar Walton, and of course Dexter Gordon. many of whom have now passed.
great little movie. I second Amber's recommendation.