"No, I don't have regrets," said Burton in an interview with the British Film Institute. "I will say this: when you work that long on a project and it doesn't happen, it affects you for the rest of your life."
"Because you get passionate about things, and each thing is an unknown journey, and it wasn't there yet," he continued. "But it's one of those experiences that never leaves you, a little bit."
Superman Returns was Burton's next superhero project following the success of his 1989 Batman franchise, but after almost two years in pre-production, the film got scrapped.
Cage, however, went on to make a cameo in 2023's The Flash, starring Ezra Miller in the titular role. Keaton also made a cameo as Batman in the film.
Burton compared these cameos to using AI on already released films and franchises.
"But also it goes into another AI thing, and this is why I think I'm over it with the studio," said Burton. "They can take what you did, Batman or whatever, and culturally misappropriate it, or whatever you want to call it."