Mr. Smith Goes to Washington
Walker collaborated with director Frank Capra on 20 films, including "Ladies of Leisure" (1930), "Lady for a Day" (1933), "The Bitter Tea of General Yen" (1933), "It Happened One Night" (1934), "Lost Horizon" (1937), "Mr. Deeds Goes to Town" (1936), "You Can't Take It with You" (1938), "Mr. Smith Goes to Washington" (1939), and "It's a Wonderful Life" (1946).