Harry Potter Theatrical Productions Ltd was founded by J.K. Rowling and Neil Blair in 2013 to develop and produce the stage play Harry Potter and the Cursed Child, the original new story by J.K. Rowling, Jack Thorne and John Tiffany. The team from Harry Potter Theatrical Productions Ltd have worked closely with Sonia Friedman Productions and Colin Callender’s Playground to produce the play, and also in controlling the international rights for the production.