I didn't expect to like this movie - it seemed like the topic was too easily made into a simplistic 'hurt-emotion' and 'stand-up for yourself' type movie. After all, it was on the Lifetime channel and that is an often-used theme. However, the movie was much better than that and this surprised me.
Basically, the story is about an attractive, popular high-school girl that undertakes a project to document what it's like to be fat. Of course, it's easy to predict the basics of the story, but there's more to the movie than just the basic plot element.
The real value of this movie is that it doesn't try to be too preachy and shame everybody about having a reaction to 'fatness'. Instead, it explores many different angles and leaves you thinking about the many complex issues involved.
The lead character is intelligent and grounded, so it's easy to become interested in her character and follow her as she is confronted with many different situations involving weight. These situations don't just involve her and various high-school cliques, but also her weight-recovering mother and chubby brother.
The movie even acknowledges issues that relate to her judgments being affected by the fact that she can step out of the 'fat-suit' life at the end of the day. Because it's able to visit many such angles, the movie keeps a brisk pace and something is happening all the time.
While the movie does have its flaws, it remains interesting. Sometimes there are no easy answers, but there's lots to think about. If you want to watch a movie that will leave you with a few interesting, self-reflecting ideas to ponder, this movie is a good choice.