Well my favorite would be:
Raging Bull
The Fighter
Rocky I&II
Cinderella Man
The Boxer
Ali
The Champ
Fat City
Raging Bull and Rocky 1,2,3,4.
Will Smith as Ali was a ******* disgrace. Disgraceful actor he is, and an Uncle Tom to boot. I hate that he was chosen to play Ali, imagine Denzel as Ali! Would have been sweet. And they've got USHER playing Sugar Ray Leonard, mother of god who does these castings?
Somebody up there likes me is good,Raging Bull is one of the best
None beats Rocky
Raging Bull is up there in my list for Robert di Niro's almost life-like portrayal of the great middleweight Jake LaMotta.
For real life portrayal, I would suggest the films, The Greatest starring Muhammad Ali as himself and When We Were Kings.
Here are others that I know of or have actually seen:
Max and Joe ( bio flicks on boxing rivals turned bossom buddies Max Schmeling and Joe Louis )
Cinderella Man
Someone Up There Likes Me
Ali
The Rocky series
Mike Tyson
Manny
The Legionnaire--- a story of a boxer who refused the mobs order to take a dive and joined the French Foreign Legion to escape reprisal.
Raging Bull is an incredible movie--one of the best.
Cant beat Rocky 3 :-D
grudge match
Like million dollar baby