Watch Behind the Mask: The Story of the People Who Risk Everything to Save Animals (1970) : Full Movie Online Free This provocative documentary goes deep within the Animal Liberation Front, giving members a forum to explain why they're willing to break the law to save animals from laboratories and other harmful facilities. Are they activists and heroes? Or are they property-destroying terrorists? Compelling footage of ALF members in action coupled with their own explanations paint a complex picture of a group willing to risk everything for their cause.