This Week: Oscar-nominated actress Anna Kendrick sings of adorkability… “Weeds”/SNL alum Kevin Nealon blesses us with etiquette advice…”The Perks of Being a Wallflower” creator Stephen Chbosky talks of time and place… Okkervil River runs through a party soundtrack… here comes the (terrorist) bride… And the Primanti Sandwich goes national. Plus: We witness the birth of a clean machine, shine a light on art, and learn the history of comedy.