Hark, I hear a lemming call

Good grief - the first preview for The Da Vinci Code is out. It tells you absolutely ZERO about the movie. I assume that this is to be what they call a teaser trailer (only about seven months to go before it's release).

Can someone explain to me the need for such a pointless trailer so far in advance. I thought we didn't have the attention span to hold our attention that long. Or is it to draw the interest of people to get a lemming showing at the theatre. (Okay, a movie with Tom Hanks and Ron Howard can't suck too terribly.)

I have the audio book, but haven't listened to it yet. I suppose I'll get around to it before the movie hits the theatres. I did watch the History Channel's Beyond the Da Vinci Code and am not too terribly excited about "The Da Vinci Code"