Pixar changed the ending to the "Finding Nemo" sequel thanks to "Blackfish". You have to see this documentary!

“Blackfish,” the orcas-in-captivity documentary that has seared SeaWorld with negative publicity, prompted Pixar Animation Studios to rewrite part of it's coming “Finding Nemo” sequel.

According to a Pixar employee, the script for “Finding Dory,” initially had an ending that involved a marine park.

But as a result of Gabriela Cowperthwaite'sharsh documentary “Blackfish,” Pixar decided to restructure that part of the story so that the fish and mammals taken to it's aquatic center have the option to leave.

"Finding Dory" is still in the early stages of production and is slated for a 2015 release,

(Source)