Formulate an answer to this elaborate question: Babylon A.D. is a 2008 English-language science fiction action film, based on the novel "Babylon Babies" by Maurice Georges Dantec, it stars Jérôme Philippe "Geronimo" Le Banner, a French former what, and K-1 fighter, famous for his aggressive fighting style and knockout power?
The answer to this question is:
kickboxer