What is the Best Boxing Movie of All Time?

With all due respect to Raging Bull with DeNiro which won an Academy Award and to the Rocky movies, in my opinion the best was Cinderella Man. I even have it in my dvd collection. Very well made, well thought out and inspirational movie about James J. Braddock during the very toughest times in America. Also the fight scenes were very realistic and exciting. But above all that, the story of his trials were incredible.