Source: http://www.takethislollipop.com/

Take This Lollipop is a 2011 interactive horror short film and Facebook app, written and directed by Jason Zada, which uses the Facebook Connect application to bring viewers themselves into the film, through use of pictures and messages from their own Facebook profiles. Starring actor Bill Oberst Jr.[1] as 'The Facebook Stalker', the film acts to personalize and underscore the dangers inherent in posting too much personal information about oneself on the internet.[2][3][4] The information gathered from a viewer's Facebook profile by the film's app is used once, and then deleted.[3]