<Li> Patricia Clarkson as Ava Paige </Li> <P> In March 2015, it was confirmed that T.S. Nowlin, who co-wrote the first and wrote the second film, would adapt Maze Runner: The Death Cure . On September 16, 2015, it was confirmed that Ball would return to direct the final film . </P> <P> Principal photography began on March 14, 2016, in Vancouver, British Columbia . Previously it was revealed at San Diego Comic - Con International that filming would begin in February 2016 . </P> <P> On March 18, 2016, it was reported that actor Dylan O'Brien was injured on set and was hospitalized . James Dashner announced via Twitter that the production was postponed after the accident . It was said that the producers were "looking to" resume filming around mid-May . According to the Directors Guild of Canada's production list, the film was scheduled to resume filming on May 9, and complete principal photography on July 26 . However, on April 29, 2016, production was shut down indefinitely as O'Brien's injuries were more serious than previously thought . </P>

When did they start filming the death cure