Production houses (and the people that work at them) will do what they are paid to do. If they are paid to provide "tail" work to adjust "released" movies the

Production houses (and the people that work at them) will do what they are paid to do. If they are paid to provide "tail" work to adjust "released" movies they'll take money and happily do it. If the money is there, they'll adjust resource allocation as needed. (The interesting thing here is what "released" means now -- that seems to be a soft concept now.)