Director: Elliot Hegarty Starring: Jack Whitehall, Harry Enfield, Matthew Horne, Sarah Solemani, Joanna Scanlan, Iain Glen, Clarke Peters Written by: Freddy Syborn and Jack Whitehall Running Time: 90 mins Cert: 15 Release date: 21st August 2015 The poster for this big screen outing of the mildly popular TV comedy exclaims “Best School Trip Ever!” Can…