The 8th edition of the festival will take place in Pamplona (Spain) from the 19th to the 24th of February, 2013.
The competition is open to participation by documentaries of any nationality made after the 1st of August 2010. Fiction, institutional and publicity films, reports and works of a journalistic nature will not be admitted.
There are no limits with regard to subject matter, length or original language.
Films which have been premiered in commercial cinemas in Spain, commercially edited, awarded prizes at any other festival held in Spanish territory or broadcast on any Spanish television channel, or which shall be prior to the date on which the festival is to be finished (24 February 2013), shall not be accepted.
See rules here