The 60-year-old actor said it was the only time he has been approached to do a superhero film, reported Digital Spy.
The role instead went to veteran actor Anthony Hopkins.
"I didn't do it. Some are good. Some are kind of funny... Guardians of the Galaxy. Or the first Iron Man. And some of them are just like retreats. I mean you can watch them do Spider-Man five times," Gibson said referring to superhero movies.
"There is a slight shift in film. But, then again, I think all films are suffering from people not being able to now open them with their name. It's a different kind of business these days," he added.