Were there any April Fool's Day winners this week? Did the U.S. think Twitter could seriously help overthrow Fidel Castro? Is it ever the right time for Grindhouse? And what are we supposed to think of Samsung's latest desperate selfie? These stories and more are exposed to the forensic glare of the Adweek team, including Lisa Granatstein, Emma Bazilian, Garett Sloane, Michael Bürgi and Sam Thielman.