Justin Theroux has Wanderlust with Paul Rudd and Jennifer Aniston Justin Theroux has signed on to star in the upcoming picture Wanderlust. The film will also star Paul Rudd and Jennifer Aniston. Directed by David Wain, the story follows a couple who, after losing all of their money, take refunge at a commune. Theroux wrote the script for the recent Iron Man film. He also co-wrote Tropic Thunder and can next be seen in Your Highness.