“The Last Son” (*1/2 out of four) was a leaden Western about an outlaw (Sam Worthington looking a lot like Fred Durst) who attempts to evade capture and end his evil family line while others (Thomas Jane, Heather Graham) try to help him and bring him in. Latest in a long line of Westerns is molasses-moving and overly familiar with barely enough plot to keep it afloat. Hopefully this is “the last” Western for a while unless Clint Eastwood wants to return to the genre.