The Ultimate Christmas Present (2000)

13-year-old Allie Thompson and her best friend Sam discover a weather-manipulating machine, mysteriously abandoned by none other than Santa Claus himself. Fueled by innocent intentions, they set out to create a magical snow day in the heart of Los Angeles. However, as the machine takes an uncontrollable turn, their whimsical adventure soon jeopardizes the very essence of Christmas. Now, Allie and Sam must navigate the chaos they've unleashed.