I read Sea World tried to boycott this and are suing or sued to try to stop its distribution..Heard it's really good too, like you say.
actually there is a bill headed to the state legislature to ban the captivity of orca's in the state of california...i have it on my FB wall and will post in animal awareness thread...
whiks...there is also a doc/movie called "the whale" that you would love...narrated by ryan reynolds based on a true story of Luna...a male whale that was separated from his pod and lived in the sound off of vancouver, canada...chasing boats and loving people!