1) Oldboy
Embraced as a messed-up classic of South Korean cinema, few realize that Oldboy actually started life as animated panels, in a comic created by Garon Tsuchiya and Nobuaki Minegishi. Then, director Park Chan-wook got hold of the adaptation rights, and made himself one of the more intense, troubling comic book movies out there.
Oldboy‘s story concerns a man imprisoned without explanation for 15 years, at the end of which he emerges from his prison older, crazed and lustful for vengeance. He eats a live squid, takes a hammer to a hallway full of goons (seen in the video above), and, ultimately, cuts his tongue off after he discovers he unwittingly committed incest with his own daughter.
This, apparently, is how the big boys make comic book movies.