The 36-year-old actress is making her directorial debut in All We Had, the upcoming film in which she also stars, and a new set photo reveals a gun-wielding, wild-eyed Katie like we've never seen before.
ET also learned from a source that Katie increased security while shooting the movie to try and keep paparazzi away from production.
Meanwhile, in May, Jamie Foxx shut down rumors that he and Katie were dating, after a photo surfaced of the two holding hands.
"I guess some knuckle head person who was here hit us with the phone cam," Jamie told ET, explaining that he and Katie we're just friends. "I guess they are trying to get money for whatever. It's amazing what people will do to sell you out."