After his thrilling performance as Rick Dalton's (Leonardo DiCaprio) stuntman Cliff Booth in Once Upon A Time In Hollywood, Brad Pitt is taking his Oscar-winning act to heart by tackling in doing a majority of his own stunt work. In a recent interview with Vulture, Greg Rementer, the second-unit director and stunt coordinator on Brad's next outing Bullet Train spoke about the 57-year-old actor's dedication.Greg revealed, "Brad did 95 percent of his physical stunts — the fighting.