I can finally write my review of Blood Brothers after stemming the tears that fell and fell at the heartbreaking finale. Willy Russell’s musical story of the tragic Johnstone Twins arrived in Wolverhampton at the Grand Theatre last night, and managed to wring tears of laughter and sadness from the sell out audience. Blood Brothers is a musical that we know ends in tragedy, we see this in the opening scene, but how we get to the tragic final scene and the song ‘Tell me it’s not true’ is one of the greatest stories in modern theatre, and one which still resonates, shocks and devastates today. Mrs Johnstone is the…