Oceans by Jacques Perrin and Jacques Cluzaud
Oceans is a stunning documentary co-directed by Jacques Perrin and Jacques Cluzaud (they brought us Winged Migration in 2002).
It's one of the most beautiful documentaries I've seen on the big screen, and it captures ocean life in the most intimate and poetic way.
The original movie is narrated in French, and there is an English version narrated by Pierce Brosnon. I am not sure if the English version is "Disneyfied", but I saw the French version yesterday and the narration is minimal, leaving you to immerse yourself in the ocean and reminds you how precious it is.