Johnny Be Good is a 1988 American comedy film directed by Bud Smith, starring Anthony Michael Hall as the main character, Johnny Walker. The film also features Robert Downey Jr., Paul Gleason, Steve James, Jennifer Tilly and Uma Thurman in her film debut. Former Chicago Bears quarterback Jim McMahon makes a cameo appearance.Judas Priest and Ted Nugent, among others, contributed to the soundtrack. The title track, "Johnny B.