'The Flash' star sought Zack Snyder's blessings to return

The Man of Steel actor Michael Shannon revealed he sought Zack Snyder's blessings prior to working on The Flash.

Speaking to the Bingeworthy podcast, the actor said, “I was hesitant, because I wasn't really happy about what happened to Zack Snyder in that whole deal,” adding, "And I really love Zack. The fact that Zack asked me to play that part to begin with — that's probably the biggest surprise of my career. It almost felt like a practical joke. I was like, 'You're kidding me, right?'"

Shannon also said that The Flash filmmaker Andy Muschietti was cool about his contacts with Snyder.

"Zack, to his credit, was very understanding," Shannon continued. "He gave me his blessing, and I went to do it. I loved Andy, too. I loved working with Andy. They're both super creative guys."

Previously, Shannon aired mixed signals about the forthcoming superhero movie, saying he was initially "a little confused" when he was approached to reprise Zod.

However, as the multiverse was explained to him, he agreed to come on board, adding, "It was nice to revisit the character."