If you have nothing to do right now, pay the moving image archive site of archive.org a visit. They offer more than 26000 movies to watch and download for free. Everything is neatly categorized into groups such as open source movies, featured films and Prelinger archive. You have lots of old movies from the black and white era but also new ones that were made with computers.
Fortunately, they have a good site wide search tool that lets you search the different categories or the whole movie archive for certain topics, e.g. war or comedy. You can also browse an entire collection or use certain keywords / authors to do so. Most movies have a review and user opinions that give you a rough overview about it. Oh, and you have the option to stream or download the movie in various formats.
Update: Videos and movies can be watched directly on the site, or downloaded in various quality levels and formats. This ranges from highly compressed versions of the movie to high resolution copies. Formats include mpeg2, ogg video and real media among others.
The main page of the movie archive lists the most downloaded items of the week, the most downloaded items, staff picks and categories that you can watch. New categories include videogame videos, Vlogs and Community video (which previously was named Open Source).
Most categories have one or more subcategories. The video games category for instance has a good dozens of them, ranging from the c-64 game video archive over speed runs to videogame replays and previews.
Update: Archive.org recently has added torrent download options to the site which you can use instead of direct HTTP downloads. The torrent downloads are often faster than the direct downloads due to the nature of how data is transferred using the Bittorrent system.
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.