Jules Furthman. Writer: To Have and Have Not. Jules Furthman was a magazine and newspaper writer when he began writing for films in 1915. When the U.S. entered WWI Furthman used the name "Stephen Fox" for his screenplays because he thought his name sounded too German, but he reverted to his real name after the war. Furthman became one of the most prolific, and well-known, screenwriters of his time, and...