Bae Jangsoo majored in journalism. He worked as a film reporter for the Kyunghyang Shinmun and was appointed as the managing editor of the Kyunghyang Shinmun Sports Khan (now called Sports Kyunghyang) and the president of the Korean Association of Film Critics. He also published Cine Talk Cine Click (2001), a book that examined problems in the film industry, and executive produced an indie film titled Moonlight Gymnastics 2015 (2018). He had a cameo role in about 60 Korean movies, like Love is Oh Yeah!, Rosy Life, The Taebaek Mountains, How To Top My Wife, The Gingko Bed, Push! Push!, 3pm Paradise Bath House, Peppermint Candy, My Sassy Girl, My Wife Is a Gangster, My Boss, My Hero, Chihwaseon, Low Life, Radio Star, Secret Sunshine, Public Enemy Returns, Unbowed, National Security, Flu, Unforgettable to name a few. Bae Jangsoo is the executive director of the Korean Film Producers Association, a steering member of the Filmmakers Task Force to Secure Diversity in Film and Eliminate Monopoly, the Preparatory Meeting for Legislation for the Structural Improvement of the Film Industry, and the Filmmakers Emergency Policy Forum where he pays close attention to screen monopolies and support for independent/art films and strives to secure diversity in the Korean film industry.