Australian Council on Children and the Media

A monster calls - a great film, but not for children! August 3, 2017

Parents are warned that the PG rating, with the consumer guidelines Mild themes and violence, some scenes may scare children, given by the Australian Classification Board to the film A monster calls could be deceptive. 

The "mild themes" include a young boy with a mother dying of cancer, while the scenes that are likely to scare children are a recurring nightmare experienced by the boy and a tree that transforms into a very scary giant monster.

Read the complete ACCM review.