Directors: Mark Burton and Richard Starzack Starring: Justin Fletcher, John Sparkes, Omid Djalili, Kate Harbour, Stanley Unwin Written by: Mark Burton, Richard Starzack and Richard Golezowski Running Time: 85 mins Cert: U Release date: 8th February 2015 Innocence is a hard thing to convey on-screen without it looking morkish or sickly sweet. Children’s films often…