Window's Movie Maker Problem?

Ok, so I am making this basketball mix on WMM with alot of different videos from my computer. The length is 3:18.48 minutes, plus it has a song (No Way Back by the Foo Fighters). When I finished I wanted to put it on YouTube, so I went to Save Movie File so it can be put onto Youtube. When it got to the saving part, it stays on 0%, and the minutes remaining just keeps increasing. I've tried some more times, and the same thing happens (It doesn't happen on other videos I do, though). What do I do?