I found some interesting websites about film festivals I thought you might like:
Movie Festivals and Events
(http://www.imdb.com/festivals/)
This is a list of upcoming festivals and those which already occured for the running year worldwide.
Here are the date, the place and the link to the festivals.
Film Festival World
(http://www.filmfestivalworld.com/)
I really like that one. You can search by location, there is a calendar for deadlines and opening dates, festival maps by continent, festival+film genres, a list of all festivals in alphabetical order and much more.
Film Festivals Worldwide
(http://www.digitaldiscounts.com/film.html)
Not as detailed as the list on imdb+Film Festival World, ordered by country.
Here are the month, the address and sometimes the phone numbers+mail/link for the festivals.
Just ignore the ads at the top ;).