Joseph Gordon-Levitt's Brother Has an Incredible Job 3.02K John Siegel 07/15/10 02:46PM Filed to: The Late Show The Late Show David Letterman Joseph Gordon-Levitt TV Video To promote Inception, Joseph Gordon-Levitt paid David Letterman a visit last night. After Dave asked about his family, JGL discussed his brother's career as Burning Dan.[There was a video here]