First Posted: Jul 23, 2013 10:41 PM EDT

20th Century Fox/ Entertainment Weekly

Entertainment Weekly has revealed the first two posters for the "X-Men: Days of Future Past" movie.

The two posters show two actors melded into each other. One shows James McAvoy and Patrick Stewart as "Professor X" while the other shows Michael Fassbender and "Ian McKellan". The posters were shown at Comic-Con this past weekend and were then posted by the Entertainment Weekly.

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Over the weekend, Fox held a secret panel which featured the entire cast from the new X-men installment. Director Bryan Singer said the film was meant to be a "betweequel" while writer Simon Kinberg said, "the goal was to try and make a film that could bring the full cast together, so time travel was the perfect tool to use. Because the character of Wolverine is ageless, he was chosen to be used as a journeyman, and way to tie both worlds together."

Singer also addressed fans about "X-Men: The Last Stand." Before the conference there were rumors that stated that since the film would include time travel, the events of the third installment would be erased. He stated, "Whenever you go back in time, and this is every bit as much a time travel movie as it is an X-Men movie, there are those risks. If you believe in certain physics and multiverses, you have to have respect for the continuity as we had. I believe certain continuity will maintain, and some things will change. It's the nature of time travel. If you go back and mess with time, things happen..."

He continued, "This is my first opportunity to make a time travel movie and I tried my very best to make a set of rules, respect them, and stay within the continuity of those rules."

"X-Men: Days of Future Past" tells the story of the X-Men who must send Wolverine to the past to change a major historical event that could globally impact man and mutant kind. The film is currently in post production and will open on May 23, 2014.