The life and times of Dalton Trumbo is a sufficient start for any cinematic exploration, but “Trumbo” focuses on the writer’s professional fight during the 1950s, where the proud Communist and successful screenwriter watched as his life was shredded by politics and betrayal, robbing him of his identity during his prime creative years. “Trumbo” isn’t interested is anything beyond the wreckage, while director Jay Roach slips into melodramatic mode once too often. The feature is professionally acted and compelling in bite-sized portions, but the overall arc of suffering is treated like a cartoon in Roach’s hands. He isn’t making a picture about a period, he’s making a period picture, diluting key moments of emotional devastation. Read the rest at Blu-ray.com