Ana, working in a modest studio, begins creating an animated film using her grandmother’s clay and hand-painted cels. The story follows Luka, a curious boy who teams up with a mischievous fire fox named Vuk to heal a fractured magical realm. Along the way, they face challenges inspired by Serbian myths — including a trickster goblin named Gospođica and a mountain spirit known as Daba.

: The film contrasts warmth (fire) and coldness (ice) not just as elements, but as metaphors for human resilience and unity.

Additionally, if "15 fixed" refers to a specific title, maybe there was a typo or formatting issue. I should check if there's a known Serbian animated film with a title close to that. If not, perhaps it's a user-created or less known film.