'A Monster Calls' Teaser Trailer Features Invisible Boys, Visible Monsters

Liam Neeson, Felicity Jones and Lewis MacDougall star in the fantasy adaptation.

The first teaser trailer for A Monster Calls, director J.A. Bayona's adaptation of Patrick Ness' award-winning children's fantasy novel, has been released, introducing audiences to a world of invisible children, monsters and the necessity of escape.

The novel, which won both the Carnegie Medal and Greenaway Medal in 2012 — two literary awards given in recognition of achievements in children's literature — was written by Ness, based on an original idea by Siobhan Dowd, and centers on Connor (Lewis MacDougall) struggling to deal with his mother's (Felicity Jones) terminal cancer while being bullied at school. During this period, he meets a tree monster outside his bedroom every night at the same time. The monster tells him stories and helps him cope.

In addition to MacDougall and Jones, the film also will feature Sigourney Weaver as Connor's grandmother and Liam Neeson as the voice of the monster. (He also provides the narration in the teaser trailer.)

A Monster Calls is scheduled for release on Oct. 14, 2016.