"David Bowie Is Happening Now" is a strange hybrid. Rather than focusing on Bowie himself, it documents an exhibition held at London's Victoria and Albert Museum in 2013 of artifacts from the singer's long and varied career. The exhibition itself was a huge success — immersive and imaginatively presented — but the film suffers from this additional degree of mediation, especially with regard to things like handwritten lyrics or costumes, which require getting up close and personal to feel that "touched by the hand of greatness" mystique.