Elton John Calls ‘Rocketman’ Biopic as ‘Honest as Possible’. “Rocketman,” director Dexter Fletcher assured us that Elton John wanted Taron Egerton to play him in the biopic on his life. But in this latest featurette, we get to hear it from the Rocketman himself. “It had to be as honest as possible. The lows were very low, but the highs were very high, and that’s how I wanted the film to be,” the real Elton John says in the new promo video for the film. Perhaps as an answer to the criticisms of Fox’s wildly successful Queen biopic “Bohemian Rhapsody,” the promos for “Rocketman” have demonstrated first that its star Egerton is himself singing John’s classic tunes, but also that the film is striving for accuracy.