Pls help me to understand a passage

1.Is this a summary of a movie or a movie review?
2.What’s the purpose of writing the passage?
A. To attract more people to see the movie.
B. To urge people to care and love animals.

This Benji story begins when his mother, a pretty black fluffy dog, escapes from the puppy mill with Colby, the boy who loves her. He tries to hide her in an abandoned house, where she has an accidental litter with a local stray. The boy's father discovers her there and takes mother and pups back home to the puppy mill, but leaves Benji behind because he doesn't look purebred enough to be sold for money. Colby comes back later to rescue the tiny puppy and keeps Benji in his elaborate wooden clubhouse, bringing Mom to come visit him in secret. As Benji grows bigger, it becomes harder to keep him in the clubhouse, and eventually the boy's father discovers him and Benji is forced to flee to the streets. But despite his fear of Colby's father, Benji cannot forget about his mother, who is growing steadily weaker and sicker from overbreeding. He continues to sneak back to the puppy mill yard to spy on the goings-on there and plan a way to rescue her. Benji's doggie pal, Scrappy enters the story when he is pushed out of a nondescript car into a country lane. Once his paws hit the ground, Scrappy wags his tail once forlornly after the car as it drives away, and then is immediately up to his neck in hapless mischief. Scrappy is a lovably clueless little dog who barely manages to escape the bumbling animal control officers who are determined to catch him. One of the wonderful things about this movie is that the two canine stars are not highly trained purebred dogs. Both Benji and Scrappy were rescued mixed breed mutts found at local animal shelters. Adorable Benji and his goofy pal, Scrappy, demonstrate that mixed-breed rescue dogs are just as intelligent and trainable as any purebred dog. Benji Off the Leash clearly demonstrates the connection between people who abuse animals and people who abuse people. Colby's father takes out his anger on those who are weaker than him, namely by intimidating his wife and the dogs. He attempts to intimidate Colby, but the boy bravely refuses to let him. This is also one of the rare films that portrays animal control officers in a positive light. Though the bumbling ACOs who pursue Shaggy through most of the film serve as comic relief, ultimately they also help save Benji's mother and shut down the puppy mill. The director of Animal Control is portrayed as tough, but caring and concerned about the small town's stray dogs. Children who are used to fast-paced action films with catchy theme songs may not have the patience for the slower pace of this film. But for rescue volunteers, older children, and anyone who loves dogs, this is a heartwarming movie that shows how even in today's world of dumped dogs and backyard puppy mills, there can still be happy endings for homeless dogs.