Brad Pitt and Angelina Jolie should soon be at each other's throats -- on purpose -- for the upcoming movie "Mr. and Mrs. Smith," says the Hollywood Reporter.

The thriller would star them as a bored husband and wife who learn they are enemy assassins hired to wipe out each other.

Originally, the movie was to star Pitt and Nicole Kidman, only "The Hours" Oscar winner took a walk because of a scheduling conflict, the trade paper reports. The fate of "Smith" then looked to be in limbo.

Enter the "Lara Croft" star to save the day. Jolie, 28, reportedly liked the script and has agreed to costar with Pitt, 39, provided the shooting schedule matches her personal one.

That could be a problem, though, given that she is scheduled to begin Oliver Stone's "Alexander" in Morocco and London and won't wrap that up until December.

Pitt, meanwhile, is still wearing an old army skirt for "Troy," though he conceivably will be done in time to make "Smith" before appearing in "Ocean's Twelve" come next February.