"X-Men: Days of Future Past" is closing in on its May 23 release date, and Comic Book Movie has posted a featurette that highlights new footage along with comments from director Bryan Singer, who discussed his experience coming back and bridging the gap between the old guard of the original "X-Men" trilogy and the younger generation of "X-Men: First Class."

"What made me particularly excited about returning to the X-Men Universe as a director is that I didn't have the opportunity to direct the younger cast in 'X-Men: First Class.' And also a chance to work with actors that I was so familiar with and had such a great experience with on 'X-Men 1' & '2,'" Singer said during the featurette. "I also wanted to try to find a way to combine these two casts, and the subject of time travel has appeared in a number of the X-Men comic books, so it was an obvious choice. For the younger cast, it wasn't until they walked onto the blue hallway, standing next to Hugh Jackman in full Wolverine makeup, James McAvoy said to me, 'Wow, now I really feel like I'm in an X-Men movie.' For me, it's a sort of a personal opportunity to reach into the past myself and reunite with old friends."

Directed by Singer and releasing May 23, "X-Men: Days of Future Past" stars Hugh Jackman, Patrick Stewart, Ian McKellan, Halle Berry, Ellen Page, Anna Paquin, Shawn Ashmore, Daniel Cudmore, Booboo Stewart, Fan Bingbing, Adan Canto, James McAvoy, Michael Fassbender, Jennifer Lawrence, Nicholas Hoult, Evan Peters, Peter Dinklage and more.