Okay,ifyouarelookingforslickHollywoodproductionvalues,skipthisone.Butthefilmdoeshavesweetness,charm&sincerity.Theactingandwritingareunevenatbest,butIthoughtJamesMarksastheboarderRobertwascharming&sexy.Yes,"TheWeddingBanquet"isasuperiorfilmthatcoversmuchofthesameterritory.But"UnderOneRoof"has…