In December 2013, Singer announced the upcoming "X-Men" film, titled "X-Men: Apocalypse", a sequel to "X-Men: Days of Future Past". Directed by Singer from a script by Simon Kinberg, Dan Harris and Michael Dougherty, the film was said to focus on the origin of the mutants. Kinberg said that it would take place in 1983 and complete a trilogy that began with "X-Men: First Class". Principal photography began in April 2015 in Montreal, Canada, and ended in August. Additional filming took place in January 2016. The film was released on May 27, 2016, in North America.