Saw this come up on YouTube today.
Technically it's an advertisement for Chipotle, but if you look at it from an artistic point of view it's pretty damn good. My only qualms really are that the YouTube comments section is full of pissed off vegans who don't know what they're talking about and people who think Fiona Apple, the woman who sang "Pure Imagination" for this, is the first person to ever sing it.
Not to mention morons who thing GM crops give you cancer on contact.
But yeah the message of the animation is actually pretty good. It doesn't support veganism so much as it just says "Hey guys, the way we're raising animals for food these days is wrong. We need to find a better way to feed ourselves."