The 1961 multiple Oscar-winner may have stagey settings, Natalie Wood’s singing dubbed, and a well-meant but muffed ‘message’, yet it crackles with wit and panache. The Jets fight The Sharks while pirouetting, Romeo and Juliet (Tony and Maria) coo amid the washing lines, and every Bernstein song’s a humdinger with sizzling Sondheim lyrical gags. Cosily cool.