This is a fan made preview for a live action Adventure Time movie. They're not actually making the movie, just this preview. Is that what Jake would really look like in real life? Because that's not what I imagined. He looks more like a sloth. Besides that, the story seems pretty legit, if not a little non-canonical. If you could be any Adventure Time character, which one would you be? I'd be BMO or the little snail that appears in every episode. You'd be Lumpy Space Princess. Granted it might not be who you want to be, it's just who you are.
Keep going for the preview.
Thanks to David and Gabe, who I'm pretty sure were involved with making the movie.