"The Hunger Games" too gory?

It seems to be that some parents say The Hunger Games is too gory for their kids despite the PG-13 rating. Although, PG-13 means "parents strongly cautioned" and the murder and bloodshed follow in line with the MPAA guidelines. According to the article, there were some cuts of blood splashes, injury detail, along with four other violent scenes. Visual cuts and color darkening helped disguise some violent parts along with a shaky camera. Additionally, Suzanne Collins, the books author and co-screenwriter said she intended for her books to be adapted into PG-13 ratings. How could she not though when it is about teenagers killing each other. Jennifer Lawrence defended the film, "We weren’t going to make a watered-down version of what we love. If you take the violence and brutality out of the movie, you take the entire heart out of it."