User blog comment:Soccergirl14/THE ACTORS AGES IS TERRIBLE/@comment-123.2.158.222-20100129051708

@ Anonymous user 03:56: another major change is that they fight the hydra! plus the story line is way off course. Im not sure about this but in the trailer, does percy actually USE the master bolt???!!! In the book that doesn't happen.

When they started Harry Potter the actor's ages were around 12.