In Air, it looks like The Walking Dead star Norman Reedus and Djimon Hounsou (Gladiator, Blood Diamond) are about to find that out for themselves. As Skybound Entertainment, the studio behind The Walking Dead TV show, games, and comics, explains, their sanity is tested as they struggle to survive in the last bit of habitable space on Earth. According to The Hollywood Reporter, the low-budget film is produced by Robert Kirkman (also of The Walking Dead), and co-written by Christian Cantamessa, whose writing experience comes from video games like Grand Theft Auto: San Andreas and Red Dead Redemption.