"But I can't imagine Harry being a stockbroker at 35. That doesn't really seem the stuff of 'Harry Potter'"

This quote by David Heyman is describing the character of Harry Potter from the popular book series. He is suggesting that it is unlikely that Harry Potter would become a stockbroker at the age of 35. This is since the character of Harry Potter is understood for his magical adventures and heroic deeds, which do not typically include stockbroking. Heyman is suggesting that the character of Harry Potter is not fit to a career in stockbroking, and that it would not fit with the character's recognized personality. This quote is a testament to the strength of the character of Harry Potter, and how it has actually become so cherished by readers. It likewise talks to the power of storytelling, and how a character can end up being so iconic that it is hard to imagine them in any other function.