Grace Kelly the great actress star of High Society and other movies left her movie career to marry a prince and never made a movie. I always feel she should have came back to the USA and made one more movie. That movie would have been the great Cary Grant movie North by Northwest directed by Alfred Hitchcock which also starred Eva Marie Saint and James Mason. It was a great movie with a great cast. Eva Marie Saint was very good in it but Grace Kelly would have been super great in it. It is too bad she couldn't have starred in that great movie.