Here's a breakdown of why:
* Intense sequences of fantasy violence: The film features numerous battles and action sequences involving mythical creatures and humans. These scenes often depict violence, including sword fights, creature attacks, and explosions, which are deemed intense by the MPAA.
* Some frightening images: The film contains some imagery that could be considered frightening for younger viewers. This includes depictions of monstrous creatures, gruesome injuries, and dark, threatening environments.
* Brief strong language: While not overly prevalent, the film contains some brief instances of strong language, such as "damn" and "hell."
Ultimately, the PG-13 rating reflects the film's content as suitable for viewers aged 13 and above, but parental guidance is advised for younger children due to the potentially disturbing and violent nature of some scenes.