Question: Which movie starring Russell Crow was about the world heavyweight boxing champion from 1935 to 1937?
Related documents: [0]  [DOC] James Walter "Cinderella Man" Braddock (June 8, 1905 – November 29, 1974) was an American boxer who was the world heavyweight champion from 1935 to 1937. [END] 
[1]  [DOC] Cinderella Man is a 2005 American drama film by Ron Howard, titled after the nickname of heavyweight boxing champion James J. Braddock and inspired by his life story. The film was produced by Howard, Penny Marshall, and Brian Grazer. Damon Runyon is credited for giving Braddock this nickname. Russell Crowe, Renée Zellweger and Paul Giamatti star. [END] 
Answer: 
Cinderella Man
Cinderella Man