Watch HERE:The BFG Official Trailer(2016) HD Official Trailer - - Official Trailer in HD br br The BFG is an upcoming American fantasy adventure film directed and co-produced by Steven Spielberg and written by Melissa Mathison, based on the novel of the same name by Roald Dahl. The film stars Mark Rylance, Ruby Barnhill, Penelope Wilton, Rebecca Hall, Bill Hader and Jemaine Clement. Principal photography on the film began on March 23, 2015.