The actress Grace Kelly, who became Princess Grace of Monaco in l956, did appear in one of Hitchcock"s films- the Rear Window, if I am not mistaken. Perhaps this is what you are looking for. She was not a Princess at the time, however.
He was a filmmaker.
Rio
No.
Yes
1940's
Alfred Joseph Hitchcock
Jimmy Stewart
Rope (1948).
Bette Davis.
Afred was married on 1926 to Alma Reville.
He died of chronic emphysema and kidney disease
A Merry-Go-Round