Paul Rudd and Elizabeth Banks star in “Our Idiot Brother.” (Nicole Rivelli) In this week’s new movies, Paul Rudd plays an endearing biodynamic farmer, Guillermo del Toro lends a creepy hand to a horror remake and a documentary about the Madoff scandal falls flat. Here’s what the Post critics had to say:

“Our Idiot Brother” (R) “‘Our Idiot Brother’ turns out to be mistitled. It should be called ‘The Brother We Treat Like an Idiot,’ and that goes as much for the filmmakers as the dysfunctional family at the core of this easygoing misfire.” — Ann Hornaday

“Don’t Be Afraid of the Dark” (R) “Even its imperfect moments benefit from a literary and artistic richness most contemporary spook stories can't muster.” — John DeFore

“Brighton Rock” (Unrated) “Over-much-ness particularly hurts ‘Brighton Rock’ at the windswept end of the affair, when the story's highly pitched emotions call for restraint, above all else. Still, there's a lovely moment with Mirren and John Hurt that helps send ‘Brighton Rock’ toward its final note of tenderness.” — Ann Hornaday

“Pianomania” (Unrated) “The movie, directed by Lilian Franck and Robert Cibis, starts off slowly, although piano enthusiasts will probably drink up every minute of early scenes that examine what goes into pairing musicians with different pianos.” — Stephanie Merry

“Chasing Madoff” (Unrated) “Director Jeff Prosserman's retelling borders on reprehensible, as he attempts to heighten an already powerful tale with a parade of needless bells and whistles, from flashy camera work to melodramatic reenactments.” — Stephanie Merry

“El Bulli: Cooking in Progress” (Unrated) “What a letdown it is that all the Parmesan air seems to have been let out of director Gereon Wetzel's torpid documentary ‘El Bulli: Cooking in Progress.’” — Lavanya Ramanathan

“Colombiana” (PG-13) “The filmmakers were surely thinking of the guys when they arranged for [Zoe] Saldana to play many of her scenes in a cat suit, a bikini or lingerie.” — Mark Jenkins