If you haven't seen it yet and you have the least bit of Star Trek fan in you, you've got to check out "Star Wreck: In the Pirkinning." Check out the trailer first, if you're unsure (be patient - the site is a bit slow).
If you go for the full movie, I recommend the BitTorrent download if you are using BitTorrent.
And one other thing - it's in Finnish, so if you're not a Finn, go for the one with the subtitles.
Update:
If you're looking for something a bit faster to download (and in English), check out a classic Star Wars parody called "Troops" - word has it, George Lucas was very impressed with this on. It puts the Star Wars Stormtroopers in a situation a lot like the US TV series "Cops." Check it out!
Technorati Tags: Comedy