To start off the movie on a particularly nauseating note, “The DUFF” opens with a reference to “The Breakfast Club,” because, for reasons unknown, nearly every feature aimed at a teenage audience but made by thirtysomething filmmakers is required to attach itself in some way to the legacy of tremendous adolescent cinema. It’s a bad idea, especially when “The DUFF” reveals itself to be a shallow, witless, and bizarrely cast endeavor, always eager to preach about the value of self-acceptance, but just as ready to indulge shallow behavior as a method of empowerment. Perhaps less time aping Hughes and more time building a consistent script should’ve been the priority for this irksome dramedy. Read the rest at Blu-ray.com