...but also the movie being dropped (without getting into the technicalities of when there are less than 5 in the TAG).
So, an actor could be attached to a movie that's delisting and adding the maximum of $250 to the TAG, but if the movie being dropped was also a $250, there's little or no change.
In terms of starbonds, the ideal actor is one that does a tentpole then an art house that reports, the a tentpole, then an art house, etc. so they are constantly having swings of around the maximum H$50.
As an example of a tentpole film not having the effect you would expect, by my calculation, JBOYE will actually adjust DOWNWARDS for STAR7 ((1.024 + 0.054 + 250) / 3 = 83.69, current price = 92.88.