In 1928, Buster Keaton signed a contract with MGM, a move he later called "the worst mistake of my life." His first movie for the studio was also the last good one he ever made. "The Cameraman" is memorable for a few scenes, notably this one at Yankee Stadium. And just so you know, Buster was such a baseball freak that he required all of his gag men to know how to play. In between takes, they'd play baseball.