“Soulcatcher” (**1/2 out of four) was a fairly entertaining pulp action melodrama about a military contractor (Piotr Witkowski) hired to seize a weapon that turns others into savage killers but when his own brother falls victim to the device, the mission becomes personal and he seeks to kill those who were its creators. Ultimately limited by its genre conventions and lack of expansive scope due to its modest budget but is fast-paced and features enough scares and action to make it decent fare.