Once you admit that this not a true story, like "the cursed kings", you will find out that this is something mixing Philip the IVth ascending story with the knights Templar' s fantasy legend, close to the da Vinci code plot , with parts of Indiana Jones and the last crusade ending with the Arthurian legend and the fiction of the magical ancient device : the holly grail .
Acting is good. The plot is weak sometime.
But I would have expected more magical or medieval fantasy stuff. Even Alima allylmg with the pope to find out the grail, resurrection tool that would be paid for over reason by margarine