Plimpton! Shoot-Out at Rio Lobo (movie, 1970)

George Plimpton got a job playing one of the bad guys in the Howard Hawks-directed John Wayne Western "Rio Lobo." In this special we see him talking to Hawks about whether he'll be killed off or not, to Wayne about how to cultivate a special walk to make oneself a star in movies and to himself as he attempts to rehearse his tiny part and while doing so is caught in the frame of a setup for another scene and chastised by Wayne. Wayne calls Plimpton "Pimpleton" throughout this special.