The Changeling Theatrical release poster Directed by Peter Medak Produced by Joel B. Michaels Garth H. Drabinsky Written by Russell Hunter William Gray Diana Maddox Starring George C. Scott Trish Van Devere Melvyn Douglas John Colicos Jean Marsh Helen Burns Madeleine Sherwood Music by Rick Wilkins Cinematography John Coquillon Edited by Lilla Pedersen Lou Lombardo (sup) Distributed by Associated Film Distributors Release date March 28, 1980 (U.S. & Canada) Running time 107 minutes Country Canada Language English Budget $600,000 Box office $5.3 million[1]