Don’t worry, he’s not going to replace Robert Downey Jr. (in fact, you don’t have to worry about Downey Jr. being replaced in Iron Man. He’s one of the reasons why the franchise became such a big hit)
According to a recent Variety report, Guy Pearce will join the cast of Iron Man 3 as geneticist Aldrich Killian. The new film will be loosely based on Warren Ellis’ Extremis series, which deals closely with nanotechnology – with Tony Stark employing nanotech to improve his armor significantly, only to regret his decision once his armor becomes threatened by a virus.
Pearce’s Killian is one of the genetic scientists who helped create the nanotech-specific virus, called Extremis. When he sells his research to a terrorist cell, things become tricky for the newly vulnerable Iron Man.
"Iron Man 3 is very much inspired by the first half of Iron Man 1," said Feige. "We’re not going back to the cave, but he’s stripped of everything, he’s backed up against a wall, and he’s gotta use his intelligence to get out of it. He can’t call Thor, he can’t call Cap, he can’t call Nick Fury, and he can’t look for the Helicarrier in the sky."
Iron Man 3 will open in the UK on 3 May 2013.