Michael Keaton's reason for bowing out of the Batcave once director Joel Schumacher took over the Warner Bros. franchise is a pretty simple one; upon reading the script for "Batman Forever," the actor's reaction was, "It sucked."

In an interview with The Hollywood Reporter, the man who helped usher in a new era of superhero movies opened up on exactly why he decided it was prudent for him to hang up the cape and cowl after just two movies, opting to join director Tim Burton in leaving the streets of Gotham City behind him. "I knew it was in trouble when he [Schumacher] said, 'Why does everything have to be so dark?'"

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Since his career hit its latest upswing with the release of "Birdman," Keaton has been more than happy to discuss his time as the Dark Knight during press events. When promoting the acclaimed 2015 film, the actor recalled just how excited he was when originally offered the role.

“Yeah, I was glad. Are you kidding? I mean, who gets to play Batman? It was awesome!” Keaton said at a press event. “It goes down in film lore, film history. What Tim Burton did really reinvented how those modern day superheroes are done. He started a whole thing, and I was part of his pioneering venture.”

While Keaton's time as a DC Comics icon may be in the past, the actor is set to embark upon his first journey into the Marvel Cinematic Universe. The actor portrays iconic villain the Vulture in "Spider-Man: Homecoming," the first film co-produced by Sony Pictures and Marvel Studios, slated for release July 7, 2017.