Jon Favreau has been pretty good about keeping up on Twitter, letting fans see a little bit of the inside of production on Iron Man 2. And now he’s gone above and beyond, posting a shot of one of the film’s most spectacular sets. Beware of spoilers!

Yeah, it’s a green screen. But apparently it’s a HUGE green screen that’s been built in LA’s Sepulveda Basin. Favreau has said it’s the biggest he’s ever seen, and I know you can see it from the road. I think I have an idea what will be mapped onto that green screen, but I fear saying it will be in violation of my embargo. Suffice it to say, it could be one of the film’s most key scenes.

UPDATED: I don’t know if Stark-Industries.net is an official site (I WhoIs’ed it, but the contact info is hidden. And granted, the elements in this image are pretty much shit you could throw together given a minute, a Windows default desktop and a DVD of the first Iron Man), but either way, this delightful splash page image really sums up where Tony is business-wise at the opening of this film. Remember, he’s done with the arms supplier business and wants to make the world a better place: