Oddly enough we're told it's Justin Theroux, who's making his screenwriting debut with Tropic Thunder a bit later this summer. Yes, that would be the same Justin Theroux who played the immortal role of Adam Kesher in Mulholland Dr. and the badass Irishman Seamus O'Grady in Charlie's Angels: Full Throttle. The trade piece breaking the story gives no hint of why Marvel Studios thought of Theroux for the project, and I couldn't find out anywhere else, but I'm sure someone will give an interview soon enough.

Last year, Theroux directed an indie called Dedication from someone else's script, starring Tom Wilkinson and Billy Crudup. It got mediocre reviews and I missed it, despite my eagerness to watch anything with Wilkinson. If a career change is what the actor was after, he certainly got it: writing Iron Man 2 is a pretty plum gig. Can you imagine?

Of course, I tend to doubt that the sequel -- which is set for release in April, 2010 -- is going to wind up with just one screenwriter when all is said and done. Theroux's draft will probably be reworked, retouched and polished a dozen times. But it's cool that the actor-turned-director-turned-scribe will at least take a first crack.