Children's Laureate Julia Donaldson has revealed she prefers the new Room On The Broom film over The Gruffalo and The Gruffalo's Child movies.
Her hit book has been turned into a special half-hour animation for this Christmas.
It's about a kind, scatty witch who invites a surprising collection of animals to join her on her broom.
The author told Newsround: "Although I did love [The Gruffalo and The Gruffalo's Child] - I thought they were really well done - there's a little bit more room to develop the characters in Room On The Broom."
Britain's Got Talent judge David Walliams is one of the celeb names involved - he stars as the voice of the Frog.
Watch our report to see Julia Donaldson talking about the film!
Room On The Broom is broadcast on Christmas Day at 4:35pm on BBC One.