Whitney Houston has already been the subject of two startling and effectively competing documentaries: Nick Broomfield’s Whitney: Can I Be Me? from 2017 and Kevin Macdonald’s Whitney, which was released a year later. Each in its own way was hamstrung by legal issues and family pressure, although Broomfield’s was perhaps the more judicious and insightful. Now here is a music biopic on very traditional lines from screenwriter Anthony McCarten and director Kasi Lemmons: a smoothly watchable and well performed piece of work. It is almost a 144-minute narrative montage, and very avoidant on key issues – seemingly deferring to everyone who is still alive and suing.