1. - Robert Downey Jr., Natural Born Killers, 1994. Rumours insist that re-writer and director Oliver Stone was close to casting the real-life model for the trashy   tele-journo Wayne Gayle, whose live TV interview with the NBK Mickey Knox turns   into a full-scale prison riot. Rivera interviewed Charles Manson in jail in the 80s... Rivera’s one, uncredited film role was in   Bonfire of the Vanities, 1990.