A parody of Old Hollywood conventions that is, for once, clever, insightful, and genuinely funny—thanks, no doubt, to the intelligence and stylistic know-how brought to bear by Stanley Donen, who was there (Singin’ in the Rain). It’s a double feature—a fight picture and a backstage musical—with actors, lines, plot twists, sets, and shots repeated in both films. The screenplay relies too heavily on facile non sequiturs, but Donen has the shape down pat: squared off, symmetrical, and wholly self-contained. With George C. Scott, Trish Van Devere, Harry Hamlin, Ann Reinking, Barry Bostwick, Michael Kidd, and Barbara Harris.