“Message From The King” (*1/2 out of four) was a half-hearted revenge story that can’t decide whether to be a pulp-action thriller or a volatile melodrama and thus amounts to hardly anything. In run-down Los Angeles, a tough South African (Chadwick Boseman) arrives to discover what happened with his younger sister and then subsequently tries to avenge her death. Even Boseman (who was so good in “42” and “Get On Up”) is dull in this by-the-numbers and muddled story. Film works best in its final third which features a few good fight scenes but the message is long gone by that time.