Ralph Ince and Mitchell Leisen were both American what?
Mitchell Leisen Mitchell Leisen (October 6, 1898 – October 28, 1972) was an American director, art director, and costume designer.
Frederick Loewe Frederick Loewe ( , originally German "Friedrich (Fritz) Löwe" ] ; June 10, 1901 – February 14, 1988), was an Austrian-American composer. He collaborated with lyricist Alan Jay Lerner on a series of Broadway musicals, including "My Fair Lady" and "Camelot", both of which were made into films.