Hollywood rebel James Dean is walking the screen again in a new advert that imagines what his life would have been like had he not died in a car crash aged just 24. Technology brings the Rebel Without A Cause star back to life - and then ages him, showing a startlingly realistic version of what might have been. He is shown receiving a lifetime achievement Oscar, as a director, protesting against the Vietnam War, and as a rather Angelina Jolie-like humanitarian ambassador.

He died on September 30th, coming up.