Every month that begins on a Sunday will contain a Friday the 13th, and there is at least one Friday the 13th in every calendar year. The longest period that can occur without a Friday the 13th is fourteen months. Either from July to September the following common year, or from August to October the following leap year.
We had Friday the 13th this July, so the next appearance will be in September 2013.
Or the next remake, according to this boy wearing the mask of Jason Voorhees, one of the most known masks in popular culture.