Madison Square Garden may be home to the Knicks, but Harlem's Rucker Park is the nation's basketball stage.

In his new documentary, "Gunnin' For That No. 1 Spot," Beastie Boys rapper Adam Yauch examines the asphalt on the corner of 155th Street and Frederick Douglass Boulevard, where Julius "Dr. J" Erving and Wilt Chamberlain once played, and uses it as a backdrop for profiles of two dozen high school basketball stars picked to participate in 2006's inaugural "Boost Mobile Elite 24 Hoops Classic" game.

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