Lewis Gilbert and Theodore Wharton are both considered to be what?
Lewis Gilbert: Lewis Gilbert, {'1': ", '2': ", '3': ", '4': "} (born 6 March 1920) is a British film director, producer and screenwriter, who has directed more than 40 films during six decades; among them such varied titles as "Reach for the Sky" (1956), "Sink the Bismarck! Theodore Wharton: Theodore Wharton (1875–1931) was an American film director, producer and writer.
film director