May 2, 2015 5:05 am Watch: “Tonight Show” Thank You Notes: The Hulk, Selfie Stick Ban Jimmy pens thank you notes to the Avengers villain Ultron, Pringles and other things. US & World Videos 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug 2:28 King Charles returns to public duties amid cancer diagnosis