Just thought of a few more I love: Marlene Dietrich in The Scarlett Empess, Blonde Venus, and The Blue Angel. And Norma Shearer in Marie Antoinette. Also, Claudette Colbert in Tovarich (dunno if the spelling's right -- Charles Boyer co-stars). Also, My Man Godfrey, Sullivan's Travels, The Lady Eve, Midnight (think that's the title -- Claudette Colbert), Beauty and the Beast (Jean Cocteau, 1947), and The Bicycle Thief (De Sica, 1948). There are so many! Also, The Petrified Forest (Bogart, Leslie Howard, Bette Davis).