Are John Paddy Carstairs and Robert Hamer both film directors?
Robert Hamer Robert James Hamer (31 March 1911, Kidderminster, Worcestershire – 4 December 1963, London) was a British film director and screenwriter.
Robert J. Horner Robert J. Horner (September 14, 1894 – July 29, 1942) was an American film producer, director and screenwriter. He produced 44 films between 1922-35. He also directed 38 films between 1921-35.