It’s going to be a wild ride. Taron Egerton stars as Sir Elton John in the epic musical fantasy #Rocketman. View the trailer for your first look at Taron Egerton performing ROCKETMAN. Rocketman is an epic musical fantasy about the uncensored human story of Sir Elton John’s breakthrough years, starring Taron Egerton, Jamie Bell, Richard Madden and Bryce Dallas Howard. #Rocketman.