You can download youtube movie after follow the below steps.

1. Open any video which you want to download from youtube.
2. Type voobys instead of youtube in browser.

youtube link : http://www.youtube.com/watch?v=VKT2sIxzws4&feature=dir

after change : http://www.voobys.com/watch?v=VKT2sIxzws4&feature=dir
Change part is in red colour.
3. Click on download button.
4. Movie will be download in .flv format, to watch the movie you can
downlod flv player from internet or you can download converter from the
same page and convert it into .3gp, .avi etc format.
you can download converter from
http://www.voobys. com/software/ download. php this link.