The toughest thing about the shield was making it believable that [Captain America] could throw this thing, have it bounce off something, then take some guy out and have it come back to him. We tried some practical stuff, where he’s throwing a rubber shield. Nothing worked until we handed it over to Chris Evans, until we said, ‘Okay, we’ve got this shield. It’s this wide, it weighs this much. What would you do? How would you throw it?’ And he came up with some really interesting ways of doing it. He had nothing in his hands, he was just miming the actions. It was basically Chris Evans’ ability to mime throwing and catching the shield that made it work.”
- Joe Johnston, director, Captain America: The First Avenger
"I think American guys tend to be a bit more forward, a bit more chatty and open than the Brits. The Brits seem to have a darker sense of humor, though I have met some Americans who have adopted bits of the British dry sense of humor as well."