Simplify the following text for a Grade 12 native English-speaking person.
Original: Because of the unexpected darker and more grown up subject matter ( the movie includes a scene in which a dog almost drowns while hanging from a bridge ) , the movie was not received as well critically as the first Babe movie was , and reviews were generally mixed .
Simplified: Due to the unexpected darker and more mature subject matter ( the film includes a scene in which a dog almost drowns while hanging from a bridge ) , the film was not received as well as the first Babe film was , and reviews were generally mixed .