Centering Flash Movie in Browser

I’m sure that this has been answered only a million times, but I don’t know how to word it well enough to effectively search for the right answer, and I have tried.

Anyway, I have a 2037px wide movie that I purposely made that wide so that it would take up just about any screen.

What I’m trying to do is simply center it and basically hide the overflow on smaller screens when the movie appears on the end user’s monitor. I can’t get it to center, however, as it always just wants to align to the left. I don’t want to use the 100% feature because that distorts the movie.

I’ve tried using the “overflow: hidden; text-align: center;” CSS feature, to no avail. Is there a way in CSS to make this work? Do I need to use javascript or something? If so, which script do I use?