AllMovie

A young girl (voice of Ruby Barnhil) plucks a rare flower in the woods near her great aunt's house. She gains special powers and is transported to a school for witches and wizards, but soon learns that the institution is harboring a dark secret. Hiromasa Yonebayashi directed this animated fantasy, which is adapted from the novel The Little Broomstick by Mary Stewart. Kate Winslet, Jim Broadbent, Ewen Bremner, and Louis Ashbourne Serkis also lend their voices.