I remember talking to someone at a studio who had to handle letters from people who wrote about flaws they had found in a movie. One complaint that stands out was about a movie set in England in the fifteenth century, perhaps about a Crusade. This sharp-eyed person had noticed that the arrows used by the knights and yeomen were fletched with turkey feathers. Since the New World was yet to be discovered, unless Leif Erickson or one of the other unsung pre-Columbian visitors happened to bring home a very large flock of turkeys, this was an impossibilty. It struck me that this search for authenticity had gone a bit far when this man complained that the inclusion of turkey feathers had "ruined the movie" for him.

Sourdough