Actor Justin Theroux ("Mulholland Drive," "Charlie's Angels: Full Throttle") has been hired to pen the script for the "Iron Man" sequel reports the trades.

Though mostly known for acting, Theroux directed the Billy Crudup-led romantic comedy "Dedication" last year and penned next month's comedy "Tropic Thunder" starring "Iron Man" lead Robert Downey Jr.

The first "Iron Man" was attributed to four separate scribes - Mark Fergus, Hawk Ostby, Art Marcum and Matt Holloway - and its script was noted in various reviews as one of the film's weaker elements. "Iron Man 2" is scheduled for an April 2010 release.