In hindsight, it's surprising this issue didn't come up way sooner: it seems that the US Patent and Trade Office sent a letter to The War Z developer OP Productions (parent of Hammerpoint) and publisher Arktos Entertainment stating that the request to trademark the name "The War Z" has been suspended because it too closely resembles Paramount Pictures' upcoming movie World War Z (which is loosely based on the 2006 novel of the same name). The kicker: OP has apparently known about this for about six weeks, before it launched The War Z on Steam and removed all alpha or beta labels from its site.