It also hosts the annual "ZagrebDox" documentary film festival. Columbus hosts the annual Arnold Sports Festival. The film premiered at the 2010 Toronto International Film Festival. Underwood was one of the headliners of the iHeartRadio Music Festival. The film premiered at the 2005 Toronto International Film Festival. The film premiered at the 63rd Venice International Film Festival. The feature premiered at the 2010 Toronto International Film Festival. The film premiered at the 69th Berlin International Film Festival. It premiered at the 2010 Toronto International Film Festival. The film debuted at the 2012 Cannes Film Festival. It premiered at the 2009 Sundance Film Festival. She performed a variety of songs similar to her Apple Music Festival setlist. It premiered at the Sundance Film Festival. The film debuted at the 2014 Toronto International Film Festival. The documentary was part of the 2009 Full Frame Documentary Film Festival.