A friend provided a link to a directory list of no-fee film festivals, "a guide to no fee festivals and opportunities, a directory of festival organizations throughout the world and a resource for current artistic work in the mediums of animation, film and video."
So, we entered 10 of the festivals on the site before moving to festivals listed on Withoutabox.
Unlike noentryfeefestivals.com noted above, Withoutabox.com is a site sponsored by the film festivals advertised on its site. You can search for a number of film festivals, with and without required entry fees, and you can submit your film directly through Withoutabox.com!
We also found these other great free film festival directories, which are beautifully organized and pleasant to look at, and use! Check out FreeFilmFestivals.org, and a constantly-updated, running list of free festivals at Film Festival Secrets, too. If you're an animator, check out CartoonBrew.com for a list of free entry animation festivals, too!