Mortal Engines is revving up for its big-screen debut, and the Peter Jackson feature is ready to drop a new look at the film. This Friday, a trailer for the epic fantasy flick will go live as New York Comic Con gets underway, and a brand-new poster for the movie has been released in anticipation. For those curious, Mortal Engines is slated to go live on December 14 as the epic will hit theaters in time for the holidays.