I've heard of "hollywood accounting" and the like before, but this particular effect is something new to me.
The effect you mention with effects houses, big-name-actors, etc. charging lots of up-front fees to compensate for the fact that the studio would try to screw them out of their cut of the profits sounds surprisingly similar to the health care situation in the US. Hospitals charge patients that they know can pay (private or gov't insured) much higher fees, because they know there are many, many patients who will not. There's also different affects related to which insurers are willing to pay which rates, etc.
The effect you mention with effects houses, big-name-actors, etc. charging lots of up-front fees to compensate for the fact that the studio would try to screw them out of their cut of the profits sounds surprisingly similar to the health care situation in the US. Hospitals charge patients that they know can pay (private or gov't insured) much higher fees, because they know there are many, many patients who will not. There's also different affects related to which insurers are willing to pay which rates, etc.