There are a lot of fake files around. These will sit 'connecting' for ages & go straight to 'need more sources' but won't ever download.
Look up a movie before download with Bitzi, if the file's been rated you'll get an idea of it's content & quality. A file with lots of sources but no Bitzi rating is often a fake
How to use Bitzi

Search again. Vary your search terms, look for actors' names or even director's name. Stay away from files with huge numbers of sources, try going for a file with 10 sources or less
If you're searching for new releases, you tend to see more fakes that if you're looking for an older or less popular movie!