What  Academy Award nominee starred in Miracle of the White Stallions?
Eddie Albert Edward Albert Heimberger (April 22, 1906 – May 26, 2005), known professionally as Eddie Albert, was an American actor and activist. He was nominated for the Academy Award for Best Supporting Actor in 1954 for his performance in "Roman Holiday", and in 1973 for "The Heartbreak Kid".
Rex (horse) Rex, also known as Rex the Wonder Horse and King of the Wild Horses, was a  hands Morgan stallion who starred in films and film serials in the 1920s and 1930s.