One Chance (out Nov 28) is the tale of a mobile phone salesman from Wales won the 2007 series of Britain's Got Talent. It doesn’t work. I’m not dissing the achievements of Paul Potts but this is a formulaic exercise in “feel good” cinema that fails to recreate this inspirational tale. There are some strange production choices too (e.g. dubbing the real singing voice of Potts over the top of actor James Corden). Grade: C.