Ynon Kreiz explains how they transformed Barbie, the well-loved and sometimes controversial doll, into a movie.

The boss of one of the world's biggest toy companies also talks about the need to bring more diversity into the Barbie brand, and expand products beyond the toy aisles.

Presenter/producer: Dougal Shaw

(Image: Margot Robbie as Barbie and Ryan Gosling as Ken in a still from the movie. Credit: Warner Bros. Pictures)