Shortly after Kick-Ass hit theaters in 2010, plans for a sequel were already under way, since it made just under $100 million worldwide from a $28 million production budget. The follow-up Kick-Ass 2 didn't do quite as well, though, earning just over $60 million worldwide from a $24 million budget, leaving the future of the franchise in question.

Mark Millar, who co-created the comic book series with John Romita Jr., revealed in a new interview with Comic Book Resources that he isn't quite sure if Kick-Ass 3 will happen or not.

"I can tell you exactly where we're at. I'm always 100% straight up with these things -- to the point where I'm always revealing stuff two or three years before it's supposed to get out. I know I told you immediately after we got the first weekend after Kick-Ass came out that we were doing Kick-Ass 2. And (Kick-Ass director) Matthew (Vaughn had engaged (Kick-Ass 2 director) Jeff (Wadlow) by the following September, but no official announcement was made until the following year. But what you can always do is look at the opening box office to see how much money it's going to take in and see what the development possibilities will be.

With Kick-Ass, it was a no brainer. It was made for $28 million and made $100 million back and then made another $140 million on DVD. So for the money guys, it was a $28 million investment that made $240 million. That's a slam dunk. You're getting your sequel. The second one didn't make as much. It cost a little less at around $24 million, made $61 million and made about $100 million again on DVD and TV rights. It was still profitable. It was by no means The Lone Ranger. But does that mean we'll make another one again? I don't know. It's definitely up in the air, and we'll just have to see. Matthew is a guy who I trust to make that decision. If he decides he does want to do it, I know he'll get it done well. And he's got the movie rights, so it's ultimately his decision. I speak to Matthew every day, and we haven't discussed Kick-Ass 3 so who knows? The option is always open."

Even if Kick-Ass 3 does move forward John Romita Jr. made it clear that Kick-Ass 2 star Jim Carrey will not be welcomed back, after the actor denounced the sequel last June and refused to promote it.

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"As for Jim Carrey, I know I'll never work with that bonehead again, so let me say this. I think Mark and I have talked about this before, but here's a guy who could have capitalized on the character he played and played it toward his anti-gun stance. The character he played gave up weapons -- gave up guns -- and became a good guy. Anybody with three quarters of an education could have figured out how to fold that idea in with their anti-gun ideas. He's not a smart enough guy to do that. He cashed his check and took his money, and then he went and pulled a bunch of crap on our film. I say 'our film,' because a lot of people worked on that. He made people suffer that had jobs and needed every dime from this. I'm not talking about Mark and I. I'm talking about people in the offices and people behind the camera that worked their butts off for this. He took money out of their pockets, and he should be ashamed of himself. I've always wanted to say that, and I'll stand on a chair and look him in the eye and tell him that's what I think."