Shane Black Talks 'Iron Man 3's' Extremis Storyline

Iron Man 3

The Extremis storyline in "Iron Man 3" might not be at the forefront of Marvel's promotional efforts, but it's definitely in there. During a recent interview, director Shane Black opened up about how he dealt with the superhuman serum plot in the upcoming movie.

"In the 'Extremis' comic book, there’s a type of thing that takes over and basically upgrades DNA. Sometimes you die. But if you live through the experience then you come out this changed thing," Black told SFX magazine, via Comic Book Movie. "But the way they do it is the guy that does it is not some man chosen to be the super soldier -- he’s just a militia guy. There’s an element of realism to it as well. So what we’ve tried to do is take this very science-fictiony concept of super people, and ground it in the type of people who volunteer for this being not necessarily super villains, but just people who upgrade."

Based on his next statements, it sounds like Guy Pearce's Aldrich Killian and Rebecca Hall's Maya Hansen definitely play villains in the upcoming movie.

"I love the idea of a super villain that doesn’t wear a cape, that doesn’t wear a super suit. That goes around dressed as you are right now," Black said. "As for the science of it, once again we’ve gone back to the comic books, and I think pretty much lifted the Maya Hensen idea, that she met [Tony] long ago and had the germ of an idea, which now has come to fruition full circle, but she’s afraid because it’s gotten out there. And we go from there."

He added, "I think you’ll be interested in the effect that we generate to demonstrate what Extremis does to a human being. It’s a pretty interesting special effect. But we’ve deliberately stayed away from defining, ‘Oh it’s nanites.’ What we do keep from the comic is the idea that there’s a slot in the brain that seems to have been dormant, but exists in human beings, almost as though it’s waiting for human beings to find a way to fill it. It’s been there forever.”

"Iron Man 3" comes out on May 3.

What do you think of Black's take on the Extremis serum? Tell us in the comments section below or on Twitter!