'In-I In Motion' Review: Juliette Binoche's Candid Dance Documentary

Of Fred Astaire and Ginger Rogers, the screen’s most celebrated dance partners, Katharine Hepburn is famously said to have declared that he gave her class, while she gave him sex appeal. Juliette Binoche and Akram Khan each have both those qualities in spades, so what did they stand to gain from teaming up for a terpsichorean collaboration on the London stage? By 2007, the Oscar-winning French actor and the royally honored British dancer-choreographer had reached the summits of their respective professions — but while both were accomplished performers, Binoche was no professional dancer, while Khan wasn’t a dramatic actor. Unveiled at the U.K.’s National Theater in September 2008, the hybrid stage piece “In-I” was the striking result of a mutual effort to train each other in those disc