Belgian experimental filmmaker Chantal Akerman (“Je Tu Il Elle”/”Nuit et Jour”/”News from Home”) comes up with a goofy backstage musical revolving around rehearsal footage, that aims to be a deconstruction of the musical. It opens with disembodied voices on a black screen, which leads to ladies’ feet in heels clicking across the floor. The first hour, shot on video, amounts to a montage of auditions for parts in a musical comedy. It’s untidy but very playful, and the surprising way it’s filmed has its pleasures. The unseen Akerman directs from behind the scenes, as she uses the actors like props to get them to deliver their songs the way she wants The choreography is rehearsed, repeated, and altered under Akerman’s offscreen guiding hand.