Sky Ladder: The Art of Cai Guo-Qiang ★★★½

A film that wears its multiple editors on its sleeve - a scene in Tiananmen Square feels like the beginning of an idea, then stops abruptly; a through line is created as a framing structure (the goal of creating the Sky Ladder) only to vanish from view for ages - but a cut above most art docs both in its willingness to challenge its subject's worth and in having a subject that's appropriate to moving image. The opening explosives performance for THE NINTH WAVE is one of the most sublime things I've ever seen; short of being there, this is possibly the best way to see it, which can't be said of the work of any number of painters, photographers, writers, et cetera. .