I found this after going to google. funny. Now to business.
1. click on play - opens google video.
2. right lower corner: click on google video and shows go to google video. click on it.
3. google site opens. click on download button on the right side of the video
4. click on manually download video. save it to the desktop.Ignore google video player download option
5. open the saved text on your desktop with microsoft word.
6. you will see lot of code. copy everything in between url and doc_id but do NOT include url and doc_id.
7. open the browser and in address bar, paste what you have copied in step 7
8. click ENTER. and save the file.
9. play with VLC player.
ENJOY.

If you have a google video player downloaded, and installed, by running this saved video file(already saved on desktop), will download the movie and put in your computer google directory.
So no additional thing is required. Google video is okay to install.
Hope this helps.