“Brightburn” (**1/2 out of four) was a better-than-average horror thriller about a couple (Elizabeth Banks and David Denman) who take in a seemingly innocent young boy (Jackson A. Dunn) who they come to realize is possessed and unhinged and endangers their family and everyone around them. Genuinely frightening and unsettling at times, and enhanced by Dunn’s creepy performance as the child, but story starts to become repetitive after a while and final scenes are a bit over-the-top and arbitrary. Yet another film which never quite escapes the shadow of both “The Shining” and “The Omen” but still an overall good try.