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"Ali" (2001) -- Will Smith played heavyweight champ
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"Ali" (2001) -- Will Smith played heavyweight champ Muhammad Ali during a tumultuous decade of his life (1964-74). Smith trained seven hours a day to get Ali's boxing moves down. (2001)(Credit: AP Photo)

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Athletes in film

Take a look at some of the best sports films of all time -- some starring pro athletes and others chronicling the lives of sports greats.