Mynette Louie, president of Gamechanger Films, recently had a problem. She caught a stand-in on set not only taking photos of her film’s star, whose contract had specific photo approvals in place, but posting the photos to Facebook. “I told him to delete them from his Facebook, then I went through his phone and deleted all the photos he took on set.” Traditionally, producers, marketing departments and publicists labor over key stills and publicity images, methodically crafting a film’s identity in careful, strategic installments. This practice continues today, but can quickly be subverted by a tweet, post or status update. […]