They were the big screen royalty that left us too soon - the brilliantly talented icons whose premature deaths continue to fill the hearts of movie lovers with rue and pain. From Robert Harron and Rudolph Valentino of the silent era to Heath Ledger and Natasha Richardson of today's cinema, the history of movies is filled with too many legends and rising stars who died before fulfilling their career destinies. But what would have happened if fate had been kinder? What could have been the careers of Jean Harlow, James Dean, Marilyn Monroe, Dorothy Dandridge, Bruce Lee, John Belushi, River...