The Angelina Jolie and Brad Pitt family

Angelina Jolie and Brad Pitt were caught getting amorous in Brad's trailer on set recently.The 'A Mighty Heart' actress - who has four children with the 'Ocean's Thirteen' star - has previously admitted they have to "schedule alone time together" and it seems one of those rare moments was interrupted. An on set source told E! Online: "It was the middle of the day, and they were both hanging in Brad's trailer during downtime."Someone was sent to fetch the talent from the trailer and walked in on a little sexy something-something, going down, so to speak."Let's just say they're clearly still hot for each other."Angelina said recently: "We're working on it. Right now, we're not great about mommy and daddy time."We don't go to parties. We hardly ever leave the house. We try to schedule time when we're alone."The couple are parents to five-year-old Cambodian son Maddox, three-year-old Vietnamese son Pax Thien, two-year-old Ethiopian daughter Zahara and one-year-old biological daughter Shiloh.