One of my favorite arguments was that it can't have been real because "One small step for a man, one giant leap for mankind" has to have come from a scriptwriter's pen.

Of course it did--what did you expect, that the guy would spearhead a multi-billion-dollar project, do something that the vast majority of humans throughout history would never dream of being able to do, and say, "Uh... well, I guess we're here...."