Director: Josh Radner Starring: Josh Radnor, Elizabeth Olsen, Richard Jenkins, Alison Janney, Zac Efron Written by: Josh Radnor Running Time: 97 mins Cert: 12A Release date: 5th October 2012 If you are in a long-running successful sitcom like How I Met your Mother, you are going to find a way to get yourself to the…