updated 10/30/2012 AT 1:00 PM ET
•originally published 10/30/2012 AT 2:35 PM ET
What better holiday for Maleficent and her brood?
During a high-spirited shopping expedition Sunday, Angelina Jolie – who plays Sleeping Beauty’s evil queen in the upcoming live-action Disney movie Maleficent – and three of her six children with Brad Pitt hit the Halloween Adventure Superstore in Sherman Oaks, Calif.
“Halloween is a big deal for the kids. There are decorations everywhere at the house and the kids are already dressing up,” a family source tells PEOPLE. “They will have a party at school and will also go trick-or-treating with their friends on Halloween. The kids are all very excited.”
Picking out costumes and other holiday-appropriate items with the mother were Shiloh, 6, and 4-year-old twins Knox and Vivienne.