Angelina Jolie takes the kids out to shop for their Halloween costumes at a local Party City on Sunday (October 28) in Studio City, Calif.
As they left the store, Vivi was wearing a unicorn outfit and Knox held onto an alligator toy.
The day before, Angie was spotted sitting in her car making some phone calls while Knox and Vivienne had fun on a playground with their nannies.
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