What’s most frustrating about “The Possession” (not to be confused with last week’s “The Apparition”) is that it’s filled with potential. It’s a distinctive story of demonic ownership with a specific cultural tilt, yet the production seems hesitant to follow through with its chilling ideas for terror. Instead, “The Possession” is locked in mediocrity, always wincing when the horror hits a few memorable extremes. Maybe it’s the PG-13 rating or perhaps director Ole Bornedal isn’t up for the challenge, but this feature is exceptionally good at pulling its punches, leaving discouraged viewers to fantasize about a more satisfying picture poured from the same filmmaking ingredients. Read the rest at Blu-ray.com