Bryce Dallas Howard is to play Sir Elton John's mother in the biopic 'Rocketman'.<br />The 37-year-old actress has been cast alongside Taron Egerton, who is playing the musician, and Jamie Bell as Bernie Taupin in the much-anticipated new movie.<br />The plot will focus on Elton's transition from his time at the Royal Academy of Music to becoming a global superstar, which included his hugely successful partnership with Taupin.<br />'Rocketman' is being produced by Matthew Vaughn and his Marv Films, as well as Elton and his Rocket Pictures partner David Furnish.<br />