This week: Actor James McAvoy (of “X Men” and “Filth”) flies the Scottish flag … Writer-director Jon Favreau cooks up a foodie film … Top author of the summer Emma Straub keeps the vacation going forever … Indie pop duo Sylvan Esso score your next brat barbecue … The one time when you want food to stain your clothes (it’s art!)… Globetrotting comedy writer Kristin Newman does etiquette, for all nations … A drink for America’s first speeding ticket victim … And more.