Lol,.......Britney Spears get spanked.......
Well, you got yourself either a faked file or that popup pictures is really from M$ and you'll have to look for a media player that doesn't make jokes with you.
For the latter one I reckon downloading the free VLC player which can play almost all media files without problems and without inviting you to the bedrooms of celebrities....
You can download it from here:
http://www.videolan.org/vlc/
As a side note, to preview files with it you'll have to open the files directly from the Incomplete folder and not via the LW preview function if you have a LW version below 4.13.
