The official press release states that since the film may have "strong restrictions" when officially released, that it's not appropriate to air it in public where impressionable young minds can easily view it. Instead, the film will be screened in a regular theater, where officials can be more cognizant of the age of the people in attendance. The downside here is that far fewer people will have an opportunity to view the film. A press screening is still planned as well.
As Twitch mentions, the news must come as a disappointment to festival organizers, who were making this year's Cinema De La Plage more about premiering new and exciting films rather than just showing old releases.
Richard's movie is about a young woman forced into a fight for survival against a pack of bloodthirsty ghouls. No word on potential US distribution yet, but my fingers are crossed.