Using comedy to relay a storyline comes naturally to director Lulu Wang. Her debut art-scene comedy "Posthumous" has lead the way to her new film "The Farewell", telling the story of a family dealing with the impending loss of the matriarch and the lie they tell her to cope. Today on The Treatment, Wang discusses her "American" experience growing up a Chinese immigrant and how that molded her take on cultural assimilation and her decision to cast Nora "Awkwafina" Lum in the lead role.