With Doctor Strange in the Multiverse of Madness hitting theaters this weekend, and preparing to break the Marvel Cinematic Universe's reality even more, the film's writer is now regretting setting up so many rules they had to follow going forward.

　　Michael Waldron, who also wrote Loki for Disney+, brought the multiverse into action as it was hinted in both Doctor Strange and Avengers: Endgame. Waldron quickly realized maybe he should have been more lenient in how it actually works in the MCU.

　　"We worked pretty hard on Loki to make it as airtight as possible," he said to Digital Spy. "But there were times when I was like, 'Oh, sh-- I wish I hadn't have defined that so clearly. I don't know why I had to be so specific in my time-travel television show about the rules of the multiverse.'"

　　Though they were very stringent, those core rules ultimately helped Waldron and the Doctor Strange team come up with a cohesive vision. "You have to all have a shared language of all this stuff, otherwise, it can get pretty confusing," Waldron added.

　　The Doctor Strange sequel has a few cameos and ties together numerous facets of Marvel mythology and properties including Professor Xavier sporting a look based on the X-Men animated series. You can check out our spoiler-free review here.