Justin Theroux has become everone's favorite script doctor for comedies, having lent his talents to 'Tropic Thunder' and the recent Ben Stiller vehicle 'The Watch.' And now he's swooping in to rewrite -- and direct -- 'Swear to God.'

'Swear to God' is a comedy project over at Warner Bros., which will be produced by Will Ferrell's Gary Sanchez banner. Ferrell stars as a hedgefund manager who believes he has seen God, with Steve Carell co-starring. The project isn't rolling full-steam just yet, as Ferrell has to finish work on 'Anchorman 2,' which is scheduled for a 2013 release.

According to Deadline, Theroux will be rewriting the script from 'Due Date' writers Alan Cohen and Alan Freedland, and the film will likely begin shooting as soon as production on 'Anchorman 2' is complete because priorities.

Carell can be seen in 'Hope Springs' alongside Meryl Streep and Tommy Lee Jones, which hits theaters tomorrow, in case you were cruising for some old people getting down and nasty. He also starred with Keira Knightley in Lorene Scafaria's 'Seeking a Friend For the End of the World.'

Ferrell can be seen in theaters tomorrow as well, alongside Zach Galifianakis in 'The Campaign,' from 'Dinner For Schmucks' director Jay Roach. Don't let the director's resume fool you -- 'The Campaign' is hilarious and has some searing commentary on modern politics. So maybe go see that instead of 'Hope Springs,' unless you're just really into 31 year-old marriages falling apart while Tommy Lee Jones makes grunting noises.