But his latest, "Zero Days," almost belongs in a category by itself. Easily the most important film anyone has released this year, it is a .Zero Days, film review Stuxnet, secrecy and the new era of cyber war. Alex Gibney s documentary tells the story of the malware that was designed to take out Iran s nuclear capability, and advocates the need for open debate about the new breed of cyber weapons..Zero Days review Alex Gibney s chilling cyberwar doc. out of stars. Cybers, warns Gibney, are not just hacking but a .