Looking for a hook on which to base your entire weekend? We have three words for you: Jonathan Safran Foer. Foer will be spending this weekend here in D.C., his hometown, where his alma mater Georgetown Day School keeps his debut novel Everything Is Illuminated on the reading lists. Friday night, you may want to begin the weekend by heading out to the Loews Dupont Circle 5 to catch a screening of Everything Is…