Need Help fixing a corrupt wlmp file that I need to finish

The file was openly properly each time but then one time I opened it and part of the video bar on the right hand side is white/blank and only the music bar is displayed. That portion of the video does not play on the left side preview either. It goes black. Can I upload the file to skydrive and see if anyone can assist me in repairing it somehow? and would i have to supply the individual video files as well?

please help!

thanks

jordan