Pitt -- with a baby bottle in his back pocket -- held the hand of Jolie's adopted son, Maddox, 4, and cradled her adopted daughter, Zahara, 7 months, while Jolie shot scenes with co-star Matt Damon Monday, the New York Post reported.
Pitt and Jolie, who reportedly started their relationship while filming "Mr. and Mrs. Smith," recently set up housekeeping together in California.
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