Most films appeared in by a future royal

Rita Hayworth (USA, 1918 - 1987) starred in a total of 66 films during her career whch spanned from 1926 - 1972,  49 of which were made before her marriage to Prince Aly Khan (m. 27 May 1949 - 26 January 1953).  Rita and Aly's marriage reached the end of the road during the making of Champagne Safari (USA 1952).