Although Hawking had an aversion to featuring his personal life in the film, Morris saw A Brief History of Time as being as much a biography as a science text, and much of his directing and editing work was dedicated to finding ways to depict ideas from theoretical physics and cosmology and then connect those ideas with details from the life of Hawking. He employed stylized interview sequences, graphic illustrations, and music written by Glass. Morris also included clips from Disney's The Black Hole (1979).