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On Demand movie highlights

THE GRUDGE

(Cinemax on Comcast) Sarah Michelle Gellar puts her “Scooby-Doo” skills to the test, playing a nurse in Tokyo trying to find out why a house is haunted. Watching her run around this would-be freak-out stirs thoughts of Naomi Watts in “The Ring,” but this Japanese horror remake is better. Still, it lacks a single potent shock. (PG-13; runs through Dec. 13)

ROCK OF AGES ½

(Comcast Movie Collections: All New Movies) For those who can’t stop believin’ and fans of bizarro Tom Cruise performances. This star-studded adaptation of the Broadway jukebox musical, dedicated to the enduring power of cheesy ’80s pop-metal, alternates plastic bombast with moments of comic invention: It’s karaoke night on a Hollywood budget. Cruise plays an Axl-like rock god; Alec Baldwin, Russell Brand, and two dull ingénues also appear. (PG-13; runs through March 8)

SILVERADO

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(Encore on Comcast) This outing with a galloping gang of four is expansive in spirit as well as geography. But it often seems synthetic, as if it consisted of recycled bits of other Westerns. This undercuts its entertainment value. (PG-13; runs through
May 31)

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