you are correct, as far as I know, PDOS was in line to receive certain "bonus" money, basically, if the box office hit certain milestones, wasn't ever able to find out what those milestones were, but I believe you are correct in that PDOS does not receive a straight up percentage of box office, for example.. at least as far as I know... but imo it would still be exciting to see it do well considering the relation... :-)
hell this thing will be opening in new territories through next month with a few not until October, I think, so there is still a good chance imo we will see total gross increase significantly, not to mention dvd/blu ray merch, etc..