"Piggy" is an interesting flick that could have been better. It's the kind of movie where you wish a different, more capable filmmaker had been given the job of making a movie with the same themes. It evokes real-life issues but doesn't really say much about them. In that regard it is almost annoying.
Sara is an overweight girl living in small-town Spain where she is bullied by girls who nicknamed her Piggy. One day she decides to go to the pool, where she encounters her bullies. They harass her with horrible verbal humiliation, and then even attempt to drown her.
Sara later sees that the girls have been kidnapped, seeing them taken away in a van. She ignores their pleas for help and decides not to tell anyone what happened.
Sara, the titular "Piggy", is a rare survivor of bullying who gets the opportunity to take revenge. She was entirely at the mercy of her bullies, but they end up in an even more precarious position in front of her.
One problem with the movie is that we never really feel for Sara, despite seeing the nightmare the other girls put her through. The movie depicts her at an odd distance, seemingly assigning us the role of bully too. Bullies don't see the real person, they just see whatever the dislike about themselves, and go after it. We never really see Sara as a real person either.
It feels like the movie raises genuinely timely issues but doesn't really do anything with them. It's also never really convincing. The filmmakers needed to engage us on the character level, to put us in Sara's world. But hardly any of them seem to know how to do that.