Anya Taylor-Joy, Maisie Williams to star in 'X-Men' spinoff

"Split" star Anya Taylor-Joy and "Game of Thrones" fame Maisie Williams have signed on to star in X-Men spinoff "New Mutants".

Taylor-Joy will play Magik, a young sorceress who is also the sister of the X-Men bruiser Colossus, while Williams will portray Wolfsbane, a lycanthrope struggling to reconcile her powers with her religious beliefs, reported Entertainment Weekly.

Josh Boone is directing the film from a script he wrote with Knate Gwaltney. Based on the Marvel comic, the film will focus on a diverse group of teenage mutants who are still coming of age.

The movie is expected to begin production in July this year.