Sara De Boer / Retna Ltd. 1 / 2
Sara De Boer / Retna Ltd. 1 / 2

Who says you can't mix work and play?

Brad Pitt paid a visit to the New York set of Angelina Jolie's thriller, Salt, Thursday afternoon.

The dad-of-six was was dressed down in jeans, a jacket and his favorite newsboy cap.

See more photos of Brad on Angie's set.

The same day, he took a flying lesson -- a longtime hobby of Jolie, who got her pilot license in 2004.

See adorable photos of the Jolie-Pitt kids -- including the twins!

Jolie was also spotted on set holding Richard N. Haass' War of Necessity, War of Choice: A Memoir of Two Iraq Wars, which documents the president of the Council on Foreign Relations' personal account of the decision to invade Iraq.

Check out photos of Angelina's action roles.

The Jolie-Pitt family has been living on New York's Long Island while Jolie films the flick, which hits theaters next summer. She stars as Evelyn A. Salt, a rogue CIA operative trying to clear her name.