“The Lost King” hopes to illuminate an otherwise forgotten bit of recent British history, sharing the story of Philippa Langley and her quest to locate the remains of Richard III, endeavoring to dig through rumor and research to achieve a seemingly impossible goal. It’s a fascinating tale of obsession, handed a smooth dramatic ride by screenwriters Jeff Pope and Steve Coogan (adapting Langley’s book, “The Search for Richard III”), who strive to focus on the woman’s journey through the darkness of doubt and rejection, forced to rely on belief to achieve desired results. Director Stephen Frears (“Dangerous Liaisons,” “Philomena”) helps to keep the feature on the move, settling on a semi-Hitchcockian tone for the picture, which is both unexpected and most welcome. “The Lost King” has ideas to share on inequality and historical inaccuracy, and the writing successfully balances the human drive of the story with the details of the hunt. Read the rest at Blu-ray.com