Use the Video search, or the All Types search. If you're using the All Types, try searching for movie title - format (eg blahblah - avi).
There are lots of fake & misnamed files around, always use Bitzi to check a file before download. People use Bitzi to rate files...if the file's been rated then you'll get an idea of content & quality. See the 'how to use Bitzi' link for info about downloading Bitcollider...so that you can rate files yourself!
If a file has heaps of sources but no Bitzi rating, chances are it's a fake. There's more info & tips in the threads below.
How to use Bitzi Fake files showing up in search results How to find music(tips for movies, too)
Now after you have downloaded the file you will have to use converting software to convert from AVI. to what ever file type an iPod requires. Not sure of that since I don't use an iPod.
Hope this helps.