It recalled the uncomfortable moment in 2005 when Chris Rock - again, someone hired to bring an edge to proceedings - was upbraided by Sean Penn for making fun of Jude Law.

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That was also a year that Sean Penn won an Oscar for his performance as Harvey Milk.

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Sean Penn won best actor for playing Harvey Milk in "Milk, " the story of the first openly gay man elected to major public office.

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"Milk, " the biopic about pioneering gay politician Harvey Milk, earned nominations for star Sean Penn, director Gus Van Sant and its original screenplay as well as a best picture nod.

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Actor Sean Penn sat at his side last week, calling for his release.

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Actor Sean Penn expressed a similar view on Friday night, as he entered the Austin Convention Center for the anniversary event.

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