Mark Millar admits he doesn't know whether a third movie will be made.
Millar - who has just completed the print version of his amateur superhero story - says there is no certainty that a third film will be made, despite its popularity among comic book fans.
He told Comic Book Resources that making the first movie was a "no brainer", but added that "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'".
Asked whether fans can expect a third 'Kick-Ass' movie, Millar said: "I don't know. it's definitely up in the air, and we'll just have to see. Matthew [Vaughn, who directed the first movie and oversaw the second] is a guy who I trust to make that decision.
"I speak to Matthew every day, and we haven't discussed 'Kick-Ass 3'. So who knows?"
As for Millar, another of his comic books is coming to the big screen in the form of Kingsman: The Secret Service.
The movie will see Vaughn in the director's chair, while Colin Firth, Mark Strong, Samuel L. Jackson, and Michael Caine are on the cast list.
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