Jon Favreau told the Los Angeles Times that, while there has not been any formal announcement, he has already begun developing an Iron Man sequel.
“We’re working on it now, which hasn’t been officially announced,” he said. “It will be released in 2010.”
Here is a recap of what we already know:

Tropic Thunder screenwriter Justin Theroux [...]

Caution: Spoilers everywhere.
Whatever. Tropic Thunder didn’t meet expectations. It’s not an abortion in a beard like Clone Wars, but it wimped out. For some reason—probably due to the red band trailer and months of exposure to incredibly positive buzz—many hoped Ben Stiller would redeem himself and categorically skewer the Ben Stiller who will soon [...]

Iron Man just bitch slapped The Dark Knight for having a BA in philosophy. To be more precise, a non-blackface Robert Downey Jr. candidly discussed his rabid thoughts about the biggest fanboy movie of all time to MovieHole. Nice.
“The Dark Knight. “My whole thing is that that I saw The Dark Knight. I feel like [...]

Tropic Thunder screenwriter Justin Theroux is currently negotiating with Marvel Studios to pen the screenplay for Iron Man 2. The Hollywood Reporter also confirms that Jon Favreau is also in final negotiations to return for the sequel. Nikki Finke reported that it was pretty much a done deal last week. I have yet to see [...]

Robert Downey Jr. and Jay Baruchel have signed on to star in the Ben Stiller-helmed comedy Tropic Thunder for DreamWorks. The Stiller, Justin Theroux and Etan Cohen penned screenplay is about a big-budget war movie gone wrong. I wonder if this means Tom Cruise is out?
A new Spider-Man 3 clip will be shown on the [...]