Though Sony Pictures has opted to bring Spider-Man over to the Marvel Cinematic Universe, not all the studios that hold the rights to characters from the House of Ideas are as willing to share. However, thanks to Quicksilver and Scarlet Witch, we learned that there is some grey area regarding which heroes and villains can appear in both Marvel Studios and 20th Century Fox films due to their relations to both the X-Men and the Avengers. And now we’re getting some hints about a possible appearance of certain alien race from the MCU popping up in ‘X-Men: Apocalypse’ later this year.

While speaking to Collider during a set visit, director Bryan Singer discussed Oscar Isaac and his titular villain for the upcoming sequel to ‘X-Men: Days of Future Past’. The filmmaker compared Apocalypse to the Christian deity found in the Bible: 

“The way I describe him the most, the best, is he to me is the God of the Old Testament and all that comes with that.  If there isn’t the order and the worship then I’ll open up the Earth and swallow you whole, and that was the God of the Old Testament. I started from there and when Oscar and I met we began discussing — since he isn’t really God, he’s the first mutant perhaps, but he’s not God necessarily — he’s imbued with certain unique powers. Some of them may or may not be from this Earth, we don’t know.”

Despite not specifically mentioning any characters in that description, Singer did reference some other worldly beings bestowing powers unto En Sabah Nur. In the comics, his mutant abilities were enhanced by advanced alien technology from the god-like race known as the Celestials. Based on his comments here, that may be the case in the film universe as well. But why does that even have a place in this conversation? If you recall, there’s a place in James Gunn’s ‘Guardians of the Galaxy’ known as Knowhere. That’s where Star-Lord and the rest of the team meet The Collector. Well, that “planet” was made from the severed head of a Celestial. 

So does that mean that the Celestials exist in Fox’s X-Men Universe? It’s possible that they fall under the same loopholes as Wanda and Pietro, but for all we know, they could have just renamed the aliens that manufactured the tech that make Apocalypse who he is. The name is such a small detail that a change like that wouldn’t really affect the story. Either way, we’ll find out when the movie hits theaters later this year.

Do you think that the Celestials will play a part in ‘X-Men: Apocalypse’? Or will the backstory for Oscar Isaac’s character be slightly modified from the source material? Share your thoughts and theories in the comments below. 

‘X-Men: Apocalypse’ starring Michael Fassbender, James McAvoy, Jennifer Lawrence, Nicholas Hoult, Ben Hardy, Kodi Smit-McPhee, Tye Sheridan, Alexandra Shipp, Sophie Turner, Lana Condor, Olivia Munn, and Oscar Isaac opens in theaters on May 27, 2016.