Godkiller: Walk Among Us (2010)

Even in a postapocalyptic future in which Earth has been colonized by aliens, humans need hearts to live, so when an orphan boy’s sister needs a new one, he’ll go to just about any length to get it in this “illustrated film” from Matt Pizzolo.

• alien
• based on comic
• heart
• post-apocalyptic future
• sibling relationship
• wasteland