Warning: This is NOT a tutorial!

I came to these forums (usually you see me in the careers section ) to ask if it is at all possible to change the video/music that plays when you start the game. I am in the process of making a really cool video with "Unwritten" as the music. (I thought it would be a good choice) I would like to have that as what plays whenever I start the game. I have searched high and low (even in the downloads section with an undying hope someone else did this first) with no luck. Any ideas?