Bad Hat Harry Productions, The Donners’ Company, and Marvel Studios are in pre-production on “X-Men: Days of Future Past,” the sequel to “X-Men: First Class” for 20th Century Fox Film Corporation. The start date for shooting was originally scheduled for January 2013, but has been pushed back to April 2013. Auditions for the film’s main stars will take place in Los Angeles, with additional principal actor casting in Montreal. The extras, photo-doubles, and stand-ins will be hired in Montreal throughout shooting. “X-Men: Days of Future Past” is scheduled to hit theaters on July 18, 2014.