I was working on a small 5 minute film in Movie Maker and saving the file regularly. But then the Movie Maker crashed and when I tried to open the file in the program again, it simply said: "Sorry, Move Maker can't open this project file. The file might not be compatible with Windows Live Movie Maker or be corrupted. Please select a different project file."

I've been working on this thing for a few days now and would be sad to see all my work wasted - how can I fix this or at least recover some of the older saved versions of the file?

I've uploaded the file on OneDrive here: https://1drv.ms/u/s!AlmkpE7f8w9UhTBLzM7QQHFZQm4R