Tower Block is a British thriller film directed by James Nunn and Ronnie Thompson as their directorial debut, and written by James Moran. The film stars Sheridan Smith, Jack O'Connell, Ralph Brown, and Russell Tovey and entails residents of a block of flats targeted by an unseen sniper after witnessing the murder of a teenager. Tower Block was theatrically released in the United Kingdom on 21 September 2012 and was also the closing film at the 2012 FrightFest Film Festival.