Firstly if you are not aware, a short warning: There are risks in downloading movies from the net. You are in danger of your computer being infected with viruses. You may also, in certain countries be in violation of copyright laws and the penalties are very harsh. Having said that I have, likeTheOneWhoKnows, used YoutubeDownloader and found it OK. If you have a look at a sites like 'Snapfiles' you will find quite a few 'free' or 'trial' versions of downloaders.