How to play a video on iPhone without using the native iOS video player?

I'm developing an app for the iPhone devices that will have a tutorial feature. For the tutorial, I want to display a pre-recoded video that will overlay part of the screen in a separate window, so the app is still visible behind. I don't want the user to have any controls over the video, just for the window to open, the video play, and the window close when the video finishes. All this while part of the app is still visible behind the new window.

How can this be achieved? Are there plugins out there that do that?