Context of Les Misérables in concert : 10th anniversary concert at London's Royal Albert Hall ; 2 Entertain ; BBC ; Cameron Mackintosh presents ; a musical by Boublil and Schönberg ; lyrics by Herbert Kretzmer ; based on the novel by Victor Hugo ; produced by Cameron Mackintosh ; original direction & concert supervision by John Caird and Trevor Nunn ; director, Paul Kafno, Gavin Taylor