Directors: Mark Andrew, Brenda Chapman and Steve Purcell. Voices: Kelly MacDonald, Billy Connolly, Emma Thompson, Julie Walters, Robbie Coltrane, Kevin McKidd, Craig Ferguson. Written by: Mark Andrew, Steve Purcell, Irene Mecchi and (also story) Brenda Chapman. Running Time: 100 mins Cert: PG Release date: 13th August 2012 Those of you who read my reviews on…