Robert Downey Jr. set his crotch on fire while filming a scene for his new movie, Sherlock Holmes. He plays the fictional detective, who’s famous for smoking a pipe. While the cameras were rolling, ash fell into Downey’s lap from the pipe and his pants caught on fire. A source said: “Robert leaped from his armchair and jumped up and down, slapping his crotch and howling, ‘Oh God, I’m on fire!’ Robert had placed the pipe on a plate on the arm of the chair, but it overbalanced and plopped into his lap, scattering lit tobacco all over his pants.” Co-star Jude Law, who plays Dr. Watson in the movie, put out the flame. The source added: “While Robert was screaming and swatting his pants, quick-thinking Jude saved the day by flinging water from a flower vase at Robert’s naughty area.” Robert was unhurt but production was put on hold while the wardrobe department found him a new pair of pants to wear so they could continue filming.