The Jolie-Pitt kids are ready to go trick-or-treating

Angelina Jolie treats kids to Halloween shopping trip. The Jolie-Pitt kids are ready to go trick-or-treating! Angelina Jolie brought her three youngest children — Shiloh, 6, and 4-year-old twins Vivienne and Knox — to Party City in Sherman Oaks, California, on Sunday to pick up some last-minute Halloween costumes and supplies. While exiting the store, a bodyguard carried several bags of the famous family's purchases while the 37-year-old actress, dressed in a simple black dress and carrying an oversized Louis Vuitton bag, guided the kids to the car.

Vivienne appeared to be well into the Halloween spirit already. The dainty youngest daughter of Jolie and Brad Pitt emerged from the store wearing a pink unicorn costume over her black dress and funky glitter high-top sneakers. Her twin brother, Knox, also scored something new in the store: an alligator toy. Meanwhile, Shiloh looked cool and casual, tucking her sunglasses into her shirt.

Although the Jolie-Pitts spend most of their time at their palatial chateau in the south of France — that is when they aren't on movie sets or filming silly perfume commercials — they tend to return to Los Angeles for Halloween. In recent years, they have been regular fixtures in their Los Feliz neighborhood for the holiday, taking their brood trick-or-treating. The beautiful couple — who became engaged last spring — also get into the spirit, donning their own disguises. In 2009, Pitt memorably dressed up as DJ Lance Rock from the children's TV show "Yo Gabba Gabba!" The same year, Jolie went as a zombie with white powder in her hair and fake blood on her face.

The kids have been spotted sporting costumes recently for other reasons. Vivienne and her older siblings Zahara, 7, and Pax, 8, will be appearing in Jolie's upcoming Disney flick "Maleficent." The 4-year-old plays a younger version of Elle Fanning's Princess Aurora, while Zahara and Pax appear as extras in a christening scene. According to Us Weekly, Shiloh was also supposed to be in the movie but she was "bored and not in the mood" by the time the cameras started rolling. We can almost hear too-cool-for-school Shiloh saying, "Big-budget movies? Pfft! Who has time for that?"

One thing we will predict for the Jolie-Pitt Halloween? They will get a haul of Halloween candy. Not only can six kids cover a lot of ground, but they are notorious for being junk food lovers and have frequently been photographed chowing down on everything from Cheetos to chocolate. This is, perhaps, the biggest night of the year for Team Jolie-Pitt.