Secret snacks
It’s no secret that Robert Downey, Jr. was born to play Iron Man. In fact, the late, great Stan Lee even said this about the Sherlock Holmes actor. One of the more lovable things about RDJ is that he’s known for keeping snacks on set. And he doesn’t just keep them in plain sight. He has stashes of secret snacks everywhere!
In one scene, Iron Man offers Captain America some blueberries, seemingly out of nowhere. This bit of dialogue wasn’t even on the script, so Chris Evans’ surprise is a genuine reaction. However, since none of the actors skipped a beat in the scene, this made it to the final cut.