To fully appreciate “Dealin’ with Idiots,” the viewer must have some working knowledge of its writer/director/star Jeff Garlin. Or perhaps patience is a more accurate description. The combative comedian who rose to fame on the HBO program “Curb Your Enthusiasm,” Garlin is an acquired taste, repeatedly falling back on his skills of improvisation and observation to help him crack wise, often punctuated with his squealy, infectious laugh. The howl is sadly missing from Garlin’s second helming stint (following up his 2006 movie, “I Want Someone to Eat Cheese With”), but the rest of his loose sense of humor remains in “Dealin’ with Idiots,” an impulsive character-driven effort that’s good for a few laughs and some serious confusion. Read the rest at Blu-ray.com