In The New Biographical Dictionary of Film, David Thomson argues that Brennan should have won awards for even better performances in To Have and Have Not (1944), My Darling Clementine (1946), Red River (1948), The Far Country (1955), and Rio Bravo (1959). Thomson counts no less than twenty-eight high caliber Brennan performances in still more films, including These Three (1936), Fury (1936), Meet John Doe (1941), and Bad Day At Black Rock (1955). Brennan worked with Hollywood's greatest directors--John Ford, Howard Hawks, William Wyler, King Vidor, and Fritz Lang--while also starring in Jean Renoir's Hollywood directorial debut, Swamp Water (1941). To discuss Brennan's greatest performances is also to comment on the work of Gary Cooper, Henry Fonda, Dana Andrews, Spencer Tracy, John Wayne, Humphrey Bogart, Lauren Bacall, Anne Baxter, Barbara Stanwyck, Lana Turner, Linda Darnell, Ginger Rogers, Loretta Young, and many other stars.