The British Board of Film Classification yesterday revealed on their website that the previously-announced “Rogue Cut” of X-Men: Days of Future Past will run an additional 11 minutes and 11 seconds longer than the theatrical cut. Following this, director Bryan Singer took to Twitter to clarify that it’s in fact even longer than that.

For the record the Rogue Cut of #Xmen #DOFP is more than 17 minutes longer than the original cut. And has a few little changes I made. 🙂 — Bryan Singer (@BryanSinger) April 3, 2015

“It’s a big chunk,” writer and producer Simon Kinberg previously said. “A substantial part of the movie. We want to give [fans] the fullest picture of the film — behind the camera, and in front of it.”

There’s no official word on when this cut of the film will be officially released, but previous reports indicate it will be this year.

X-Men: Days of Future Past stars Patrick Stewart, Ian McKellen, Hugh Jackman, Michael Fassbender, James McAvoy, Jennifer Lawrence, Halle Berry, Nicholas Hoult, Ellen Page, Shawn Ashmore, Peter Dinklage, Omar Sy, Daniel Cudmore, Fan Bingbing, Boo Boo Stewart, Adan Canto, Evan Peters, Josh Helman, Lucas Till and Evan Jonigkeit. “Days of Future Past” is the highest-grossing X-Men film with $748 million worldwide. It’s follow-up, X-Men: Apocalypse, is coming to theaters on May 27, 2016.