Jason Buxton hasn’t made a movie since 2012’s “Blackbird,” and he returns with a claustrophobic study of one man’s obsession concerning car accidents and life demands in “Sharp Corner.” The writing doesn’t offer an expansive understanding of troubling behavior, remaining small in scope as it examines the unraveling of a person newly exposed to hidden thrills. While it seems positioned to become a thriller, “Sharp Corner” remains mostly modest when it comes to suspense, preferring to push viewers in different ways. It’s a picture of surprising events and disturbed characters, and though it doesn’t pursue bigger levels of excitement, Buxton lands a few of his ideas on a troubled mind finally freed to explore a little darkness when horror arrives on his front door. There’s just enough disturbing behavior and dark comedy to keep the feature together, and it gives actor Ben Foster a substantial role that doesn’t welcome his habitual quirkiness. Read the rest at Blu-ray.com