Sigourney Weaver has joined the film cast for A Monster Calls alongside Liam Neeson and Felicity Jones. It follows a young boy who goes to a fantasy world to escape from his mother’s illness and the bullies at school. Neeson plays the role of the monster and Jones, the young boy’s sick mother, but Sigourney Weaver’s role has not been revealed. A Monster Calls is based on the fantasy novel by Patrick Ness. The film is directed by Juan Antonio Bayona. It will be released in US cinemas on the 14th of October 2016. A UK date for cinema release has not been announced.