Writing · b. 1902 · Evanston, Illinois, USA John Lee Mahin Acting Hell Below Lieut. (JG) 'Speed' Nelson 1933 Other Credits The Bad Seed Screenplay 2018 Moment to Moment Screenplay 1966 The Spiral Road Screenplay 1962 North to Alaska Screenplay 1960 The Barbarians Writer 1960 The Horse Soldiers Screenplay 1959 No Time for Sergeants Screenplay 1958 Heaven Knows, Mr. Allison Screenplay 1957 The Bad Seed Screenplay 1956 Lucy Gallant Writer 1955 Elephant Walk Writer 1954 Mogambo Screenplay 1953 My Son John Adaptation 1952 Quo Vadis Screenplay 1951 Show Boat Screenplay 1951 Panic in the Streets Writer 1950 Love That Brute Writer 1950 Down to the Sea in Ships Screenplay 1949 The Adventures of Tartu Screenplay 1943 Tortilla Flat Screenplay 1942 Agent-readable