An unlikely source is prompting Pixar to imbue a social consciousness into its highly anticipated "Finding Nemo" sequel. The studio will take cues from the documentary "Blackfish," which shines an unfavorable light on SeaWorld's treatment of orca whales, by changing the ending of "Finding Dory" to be more environmentally friendly.

A Pixar employee tells The New York Times that the fish and mammals that occupy a "marine park" in the movie will "have the option to leave" after being taken there. Realistic? Probably not at all. But it is reflective of the harsh reactions elicited by "Blackfish" and the heated PR response from SeaWorld.

"Blackfish" chronicles a killer whale that was responsible for the death of three individuals at SeaWorld. The movie, which premiered at the Sundance Film Festival in January, has raised questions about the ethics of keeping whales in captivity, and the "Finding Dory" adjustment is one of the most tangible results of its findings.

We don't know anything else about the overall plot of "Finding Dory," so consider this your first insight into the "Nemo" follow-up as well as a rare tidbit about the inner workings of Pixar's creative process.

Watch the "Blackfish" trailer here: