I’ve never seen “Les Miserables,” so watching this celebration of the enormously long-running Anglo-French pop opera recorded at London’s enormous O2 arena was like being introduced to “Star Trek” at a convention full of rowdy Trekkies. In this semi-staged version, Alfred Boe sings and acts the role of Victor Hugo’s impossibly good ex-convict, Jean Valjean. Valjean, of course, stole a loaf of bread to save his infant nephew, only to break parole and be hunted by the fanatical and pitiless Inspector Javert (Norm Lewis, superbly intense). He does this while becoming a wealthy bourgeois and experiencing guilt over his treatment of the tragic Fantine (Lea Salonga of “Miss Saigon” and “Aladdin”).

Later, Valjean tries to help Fantine’s daughter, Cossette (Katie Hall), who in turn must endure the perils of pre-revolutionary France while finding love with the heroic young Marius (Nick Jonas, yes, that Nick Jonas). Along the way, we bump into a pair of nasty and putatively comical brothel owners, the Thénardiers (Matt Lucas and Jenny Galloway). Lucas, his teeth blacked out, performs the damnably annoying earworm and George Costanza favorite, “Master of the House,” as the audience goes bananas. The geek-out goes into overdrive as the show proper ends and several casts are brought on stage. Encore highlights includes “the Four Valjeans.” Fans of “Les Miserables” will eat this stuff up. The rest of us should just either shell out for an ordinary production or wait for the movie. It might not be all that great, but it’ll beat being an outsider at a fanfest.

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