Lust In Space

Tropic Thunder and Iron Man 2 scripter Justin Theroux is writing a romantic sit com about an astronaut for US network Fox.

Space Invader, based on an original idea by Mike Lisbe and Nate Reger, is about a man who decides to go to space after he suspects that his longtime girlfriend, an astronaut, is cheating on him with another spacewalker, according to The Hollywood Reporter . Will (Arrested Development) Arnett (left) is attached to star, and Theroux may also direct.