Unfortunately, the production of this movie was indented for pre-teens. It's sad, because it could have been a blockbuster story. The dialog was horrendous and the direction lacking. Instead of presenting a new and different society and it's challenges, the plot line gets bogged down in adolescent-sounding sibling rivalry over the heroine. Surely, that could have been an element of the story, but it was certainly overemphasized here. The CG work wasn't up to current 2008 standards, but it WAS a 2002 film, and as such was good for it's era. I felt about 30 mins could have been cut from this long film for continuity and cohesiveness.