ET have been speaking with Robert Downey Jr. about The Soloist and Iron Man 2. He reveals,

“The film is almost entirely about character, and yet we still have twice as much action as we did last time, so it’s going to be nuts. [...] Essentially ‘Iron Man 2′ is about looking behind the armor, or the armature, of a superhero. It’s one thing to say you’re Iron Man, it’s another thing to be fully ready to do that.”

As for Scarlett Johansson,

“We’ve been rehearsing and she’s in insane shape. She’s getting lean and mean.”

RDJ has also been speaking to MTV about potential Iron Man 2 storylines:

“I think [Demon in a Bottle is] probably best saved, because it’s such its own storyline,” Downey told MTV. “We’re going for the interim space [between the origin and Demon], which is more a look behind the mask of someone who says he’s Iron Man and what it really is to become a superhero.”

Video after the break

The Iron Man 2 content comes towards the end of the video: