The Mexican government is releasing state-held secrets about the end of the Mayan calendar  to the makers of a documentary, "Revelations of the Mayans 2012 and Beyond," TheWrap has learned.

The information -- protected for 80 years -- is expected to reveal Mayan beliefs in future catastrophes and wisdom characterized as "shocking," producer Raul Julia-Levy, son of actor Raul Julia, told TheWrap.

The end of the Mayan calendar in December 2012 has long given rise to theories and speculation about the end of the world.

The agreement will allow Julia-Levy to film in never-before-seen locations.

"The Mayans used to construct one pyramid over another," tourism minister for the Mexican state of Campeche Luis Augusto Garcia Rosado told TheWrap. "In the site at Calakmul (pictured below right), workers for INAH [the National Institute of Anthropology and History] have discovered rooms inside the pyramid that have never been seen or explored before.

"And we're letting this documentary film there, to see what has been discovered inside the pyramid."  

Julia-Levy (above) said he'd been made aware of the secret Mayan information by former Mexican president Vicente Fox -- a friend of his family -- and that it took four years of phone calls to finally get the OK from current president Felipe Calderon.1