Wes Ball’s The Maze Runner features complex maze environments and even more complex creatures – all requiring meticulous planning to bring to the screen. Previs and postvis would help the filmmakers prepare for the live action shoot in Baton Rouge, Louisiana and then aid Method Studios and other VFX shops in creating intricate visual effects shots involving the moving maze and the mechanical Grievers. We talk to John Griffith, who was previs director at 20th Century Fox on the show, and Jourdan Biziou, The Third Floor’s previs supervisor, about the film.