Great movie but filled with lies -- Cobb was no racist
If you want to learn about the real Ty Cobb, check out Ty Cobb: A Terrible Beauty by Charles Leerhsen. Mr Leerhsen's book debunks almost all of the myths about Cobb, and tells the true story of one of baseball's greatest players.
http://blog.detroitathletic.com/2015/05/19/new-cobb-book-sheds-hall-of-fame-tiger-in-a-much-more-positive-light/
Among Leershen’s new revelations are that Cobb’s grandparents were staunch abolitionists and his father was a fair local judge known in his segregationist Southern town in the 1890s for being a defender of minority rights. Cobb was a regular attendee at Negro League games, several times throwing out ceremonial first pitches there, and a supporter of major league integration. And far from being hated universally by fellow players, he was, Leershen asserts, more like Ted Williams, an often reticent and sometimes prickly superstar who was admired, envied, and sometimes feared. He wouldn’t have won a popularity contest, but neither would have many of the game’s greats.