LOL. I'm going to remember that one...
Just for fun, next time that you watch those movies, count all the cleft chins. I noticed that elves don't have cleft chins, but practically everyone else does. In the books, Frodo is described as having one...and they seem to be a dominant "mortal" gene in PJ's Middle Earth. A cleft is really rather rare, and is related to mild birth defects.
I had no idea. How interesting!