One of the best-written, informative fluff pieces I've read in ages, is this article about the necessity and tribulations of bathroom breaks during movies (especially Return of the King) in today's SF Gate (nee Chronicle).

excerpt: "While it may be no big tragedy to take a few minutes off from "The Green Mile," a bathroom break during "Return of the King" becomes a pisser of the highest order -- not unlike having to take out the trash in the middle of losing one's virginity."