Grim reality meets comic relief in cancer drama 50/50, starring Joseph Gordon-Levitt and Seth Rogen. photo by Chris Helcermanas-Benge, © 2011 Summit Entertainment, LLC. Feb. 7, 2012 Facebook Twitter Reddit Print Grim reality meets comic relief in cancer drama 50/50, starring Joseph Gordon-Levitt and Seth Rogen. photo by Chris Helcermanas-Benge, © 2011 Summit Entertainment, LLC.