Although this is geared towards children, it is quite scary in a lot of the film with the dog and the enemies..etc. I'm an adult and I found it to be quite intense. There are scenes with an animal dying, a girl leaping to her death and it appears like she is drowning when she lands..quite a few scenes in this I would say need adult supervision
My Mum also found it to be quite scary.
If your children have read the book before the film (The Little White Horse), your children may be disappointed. I read the book when I was 13 and was disappointed in how the film turned out, especially with how few the scenes were with the 'little white horse'. The plot seemed quite different to what I remember in the book. It's also quite a strange film and Maria wears some EXTREMELY weird clothes. Such as the crinoline of a dress without the dress on top....etc.