The film Batman V Superman is supposed to be a sequel to the 2012 film Man Of Steel, but many fans believe BvS has too much Batfleck in it to qualify as a proper sequel.
They want to see a fresh faced Batman in the film, meeting Supes at the onset of their superhero careers and trying to assess whether the alien is a threat to humanity.
So the superfolks at YMMPodcasts took it upon themselves to create World's Finest, a Man of Steel conceptual short made for fans by fans.
-Via GeekTyrant