The film was a big success for exactly one week in China, marketed as a one-of-a-kind romance and released on New Year’s Eve. Then came a flurry of what-the-hell-was-that? vexations on social media and a sudden dropoff in ticket sales. In America, “Long Day’s Journey Into Night” is staking out a limited release, distributed by Kino Lorber, and even that is something of a miracle. Bi, not yet 30, has made a movie that feels like a visual sigh and, yes, a dream. It’s a reminder of just how expansive the cinema’s boundaries remain.