I see alot of people asking can you download movies from www.youtube.com videos, probably many of you know this but for those who don't know you can save them from 3 sites.
1)www.youtubex.com
2)http://keepvid.com/
3)http://javimoya.com
When you go to one of these three websites you will need to paste your video's URL.
There is also a mozilla (firefox) addon which enables you to save videos whithout the need to copy-paste URL it can be found here...
https://addons.mozilla.org/en-US/firefox/addon/2390
Read about this addon so you understand how to use it.
When you download a movie from the site it will say get-video you change its title to everything you need and write .flv e.g. example.flv To view this movies you will need flash player which can be downloaded here (1mb).
Hope this helps, now you can save your favourite movies (this also works on more sites like MetaCafe, Google videos etc.