User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-6068707-20130708185831/@comment-6064271-20130708211425

Zues did not bring anybody back to life in the movie. Not even Hades has the power, maybe he does but I think he has to respect some ancient law regarding that. Also in the movie Percys mom escaped and Grover stayed behind. She never died, Hades kidnapped her in a way that Percy thought she died.