When Bryan Singer’s latest X-Men adventure was screened for critics a few weeks ago, there was no post-credits scene attached to the end of the movie. In fact, several of the critics at the New York screening booed loudly after they sat through the entire closing credits only to find... absolutely nothing at the end. But now that the movie is out in theaters internationally ahead of its U.S. debut next week, it’s clear that there is a post-credits scene that was held back from early screenings. Sneaky, sneaky. If you can’t wait and want to know what’s in the scene, here are the details.