You should have read the forums rules before posting names of movies, etc.http://www.gnutellaforums.com/announcement.php?f=7

Try to avoid doing so; it's a big NO-NO!!!!! here
A general advice for your problem would be to use the preview function after you've downloaded around 5-10% of what you're interested in. If it ain't what you're looking for then stop the download and delete it from your incomplete list:

LW>Library>Incomplete files

Cheers
Mario