Coliseum, LondonOpera productions are changeable things. Some decline in quality after their opening run, others don't cohere until revival time. Jonathan Miller's English National Opera staging of La Bohème falls into the latter category. It was deemed baffling when new in 2009, and overly cool on its second outing a year later. Reworked a third time by Natascha Metherell, it has become a beautifully inte…
