Oscar winner Dalton Trumbo (Bryan Cranston) spars with gossip columnist Hedda Hopper (Helen Mirren), the studios, and Congress itself in the new international trailer for "Trumbo," director Jay Roach's biopic of the "Roman Holiday" and "Spartacus" screenwriter, who was blacklisted during the Red Scare of the 1940s and 1950s. The film, which played Toronto last month and screens at the London Film Festival later this week, is slated for U.S.