Movies ruined by a single performance?

[frogmarch]

51. Yes, a scumbag! In another thread,

which was about "unabashed political liberal" actor Burt Lancaster, who was chairman of the American Civil Liberties Union Foundation of Southern California and on Nixon’s “Enemies List”:

During the late 1950s John Wayne approached Lancaster, suggesting they make a western together. Lancaster laughed off the idea, suggesting they would need Kirk Douglas in the film as well. In reality, Lancaster would not work with Wayne, Hollywood's most prominent Republican supporter who had been actively involved in the McCarthy witch hunts as a founding member and later President of the right-wing Motion Picture Alliance for the Preservation of American Ideals.