What's Wrong with this Picture?

Warning: Proceed at your own risk!  Chances are you will be freaked out once you figure out what's wrong with this picture.  Don't say we didn't warn you.

It will probably take you a minute or two to figure it out.  If you want a hint, be sure your computer's audio is turned up nice and loud when you look at it.

We managed to track down the creator of the picture - Jaybill McCarthy.  Check out his site if you want to let him know what you think of his creation.