Playing background video on IOS...

I am developing a 2.5D game mainly for iphone. It's a platformer-type game with a scrolling background. The character and obstacles look great, but the background looks really pretty bad. What I'd really like to do is play a looping video, say 30 seconds, as the background. Any way to do this with current technology?

One thought: would it be possible to hack the Xcode project created by Unity and insert some Objective-C code playing the video with an MPMoviePlayerController in the background? Obviously, a LOT of things could go wrong with this approach. I'm wondering if anyone has tried something like this before and what the outcome was. Or if anyone is reasonably certain such an approach can or cannot work.

Thanks!