Up front, let me confess an error I made regarding Expelled: No Intelligence Allowed, the new documentary about the Intelligent Design movement. In Friday's edition of "The (Mostly) Indie Film Calendar," I said the movie was "a documentary about how people who believe in evolution are big meanies who don't understand why 'Intelligent Design' (i.e., that God made everything) should be taught in science classes, too." This was a mistaken summary of what Intelligent Design is.

Having now watched the film -- which is terrible, filled with specious reasoning, false dichotomies, and self-contradiction -- I find that I did learn a thing or two. I had assumed that Creationism and Intelligent Design were the same thing. They are not. Creationism is the belief that God created the Earth more or less the way it's described in Genesis. Intelligent Design merely holds that certain things about life on this planet are best explained by something supernatural. Where there are gaps in scientific knowledge, ID fills 'em in.

There is plenty of overlap between Creationism and ID, of course, and I guess you could say all Creationists are also ID-ists. But you can certainly believe in ID without believing God made the world in six days. The film says that this misunderstanding is why so many scientists are so virulently anti-ID -- because they think it's Creationism, which truly doesn't have much scientific evidence in its favor.