A new Featurette for Iron Man 3 came out today and the focus is all about the technology of Extremis. In the video, Shane Black, Feige and Robert Downey jr discuss the just how it works and Downey talks about how excited he is about it being part of the film.

Iron Man 3 stars: Robert Downey jr, Gwyneth Paltrow, Guy Pearce, Don Cheadle, Rebecca Hall, and Jon Favreau.

Official synopsis for Iron Man 3:

Marvel’s Iron Man 3 pits brash-but-brilliant industrialist Tony Stark/Iron Man against an enemy whose reach knows no bounds. When Stark finds his personal world destroyed at his enemy’s hands, he embarks on a harrowing quest to find those responsible. This journey, at every turn, will test his mettle. With his back against the wall, Stark is left to survive by his own devices, relying on his ingenuity and instincts to protect those closest to him. As he fights his way back, Stark discovers the answer to the question that has secretly haunted him: does the man make the suit or does the suit make the man?

Source: Collider