Bryan Singer did a great job of keeping fans up to date with the production of X-Men: Days of Future Past via his social media accounts, and he appears to be continuing that while shooting X-Men: Apocalypse.Earlier today SInger Instagramed the following pic: Shooting Caliban's place of "business" #Xmen #XMenApocalypse A photo posted by Bryan Singer (@bryanjaysinger) on May 26, 2015 at 10:56am PDT That's right, Caliban will be making his big screen debut in Apocalypse.Here's a little info on Caliban courtesy of Marvel:"The albino mutant known only as Caliban was recruited by Callisto, who had learned of his mutant-tracking ability and used him to locate other mutants whom she organized into the community that came to be called the Morlocks.