Way too traumatic for young kids - or me (spoilers)
The slaughter of the Whales was BRUUUUUTAL to watch. Especially since it was a Mom trying to protect it's calf and wouldn't leave it. Then she gets shocked/deafened by depth charges; shot with sound cannons while defenseless on the surface; harpooned with balloons to keep her from diving ; then shot with a massive exploding harpoon to the heart ; all while the calf was swimming around her.
I know it's been done by humans for hundreds of years, but c'mon.
Also A LOT of other violence in this movie. It was beautiful and had some quiet scenes where you could take it all in, but not much time to enjoy - back to the VIOLENCE/Killing/kidnapping/wildlife slaughter/child death/bullying...
I liked the movie for it's aesthetics, but I never want to see it again.