Okay, hands up in the air, I’ll admit. I’ve never seen the film ‘Sister Act’. Shocking, I know, as many of you may consider it a classic, but here we are. So, other than knowing a few of the songs and having a very basic idea of the plot, I walked into the UK Tour of ‘Sister Act The Musical’ at Theatre Royal Plymouth relatively blind. ‘Sister Act’ tells the story of singer Deloris Van Cartier (played here by Sandra Marvin), who after witnessing her gangster boyfriend Curtis (