Is Kingsman: The Golden Circle based on a book?

Common questions

Is Kingsman: The Golden Circle based on a book?

Yes. Kingsman: The Golden Circle is based on the works The Secret Service by Mark Millar and Kingsman.

Who wrote the book Kingsman: The Golden Circle is based on?

The Secret Service was written by Mark Millar.

Should I read the book before watching?

If you like knowing the full story and characters first, read The Secret Service before you watch. Adaptations often change or cut plotlines, so the book is a different experience even if you've seen the movie.