It was a while ago that I first saw it, but if you get the chance to watch "The Cup" it's a really great movie. I'm not normally into movies but this one got me right into it.
It's based on the jockey Damien Oliver whose father passed away in an accident while racing and his brother also died racing a week before the 2002 Melbourne Cup, which Damien went on to win.
I highly recommend it.
I doubt anyone has seen it so feel free to list a movie that you really enjoyed.