Lambert Hillyer: Lambert Hillyer. Director: Guard That Girl. A former journalist who came from a show-business family--his mother was actress Lydia Knott--western specialist Lambert Hillyer entered films in 1917. After becoming a director, he soon teamed up with cowboy actor William S. Hart for a series of westerns that resulted in making Hart a star, for which the actor--an old-fashioned man who never forgot a slight or a favor--always gave Hillyer credit....
