Writer Jack Leonard is known for The Narrow Margin (1952), Haunted House (1940), The Secret Fury (1950) and Cry of the Hunted (1953)
| Movie | Hell's Island | 1955 |
| Movie | The Narrow Margin | 1952 |
| Movie | His Kind of Woman | 1951 |
| Movie | The Marauders | 1955 |
| Movie | Man in the Dark | 1953 |
| Movie | Gun Battle at Monterey | 1957 |
| Movie | Haunted House | 1940 |
| Movie | My Man and I | 1952 |
| Movie | Midnight Blunders | 1936 |
| Movie | The Secret Fury | 1950 |
| Movie | Cry of the Hunted | 1953 |
| Movie | Narrow Margin | 1990 |