Late Night: less a comedy and more a drama about the backstage of a comedy show, Nisha Ganatra’s film embraces a welcome diversity agenda with a few well-built characters (and a lot of generic ones); it is a feel-good movie with a conscience. The film maybe carries too enthusiastically the idea that all white males are interchangeable, as they mostly result shallow, but the imperious, smart late-night host and the sweet, over-enthusiastic comedy rookie, both trailblazer in their own ways, are round and rich. They are good creations by, respectively, Emma Thompson (who is actually really good in the role) and Mindy Kaling. John Lithgow and Denis O’Hare are also fine supporting presences. Aesthetically, the film is simple and effective.