A new trailer for Steven Spielberg's live-action blockbuster of your favourite childhood book is here. The BFG (The Big Friendly Giant,) based on Roald Dahl's world-famous book, finally showcases Mark Rylance in the starring role, alongside Ruby Barnhill's Sophie, Jemaine Clement (Flight of the Conchords) and Bill Hader. The BFG hits theaters in the UK on July 22.