Karl-Axel "Kalle" Boman is a Swedish professor of cinematic film and a prominent film producer. Regularly cited by Östlund as his mentor, Kalle Boman has been the director’s creative consultant and ear, ever since the double Palme d’or winning director went to film school at the HDK Valand-University of Gothenburg, over two decades ago, where Boman served as a professor.