The National Film Board of Canada has released NFB Advent Calendar 2011, an interactive holiday season calendar for the iPad. The application provides users with a collection of NFB films for the holiday season including Oscar-winners, classics and new releases, with a new surprise movie unlocked each day between December 1st and Christmas Day along with additional content and surprises along the way. NFB Advent Calendar 2011 requires iOS 4.0 or later and is available from the App Store for $1.