D'entre a suya ampla filmografía, se puet destacar as cintas The Great Moment (1921, con Gloria Swanson, Alec B. Francis y Milton Sills), A Night at the Opera (1935, con Groucho Marx, Chico Marx y Harpo Marx), A Day at the Races (1937, con Groucho Marx, Harpo Marx, Chico Marx, Allan Jones, Maureen O'Sullivan y Dudley Dickerson), Goodbye, Mr. Chips (1939, con Robert Donat, Greer Garson, Terry Kilburn, Paul Henreid y John Mills), Kitty Foyle (1940, con Ginger Rogers, Dennis Morgan y James Craig), The Pride of the Yankees (1942, con Gary Cooper, Teresa Wright, Walter Brennan, Babe Ruth y Dan Duryea), For Whom the Bell Tolls (1943, con Gary Cooper, Ingrid Bergman, Akim Tamiroff, Joseph Calleia, Katina Paxinou y Arturo de Córdova), u Saratoga Trunk (1945, con Gary Cooper, Ingrid Bergman y Flora Robson).