Grace Kelly a famous film star of America became Princess of Monaco.
Monaco
First as a film star then as wife of Prince Ranier of Monaco.
Rainier III, Prince Of Monaco
That film is Disney's "Enchanted"
Ronald Reagan
That was Princess Leia, when she wore a slave outfit in the film Star Wars Episode VI: Return of the Jedi.
Carrie Fisher.
On US stamps, Abbott and Costello appeared on a 1991 issue. There were probably foreign stamps picturing movies stars before that.
No. The Princess Protection Program starred Selena Gomez and Demi Lavota.
Princess Grace was a famous movie star in the US before Prince Ranier fell in love with her and married her. Grace Kelly was beautiful and well known. One of her famous roles was in 'Rear Window' with Jimmy Stewart. It was the long told story of the girl who made good and married a prince!
Princess Leia was played by Carrie Fisher. She is resuming her role for the new Star Wars film by Disney
If you mean just the film, no. There's also Luke's aunt Beru.