First thing is the word Tax Cut not be used.
The second thing is to leave them alone.
When ever people, especially educated people use the terms "billionaire" and "tax cut" in the same paragraph, it is to tell us how intelligent they are simply because people who achieved that title do not pay income taxes to begin with, they pay taxes in other ways.
The last point is simply that if these millionaires, like hollywood types want to see taxes raised, it can start with them. The US treasury department will be more than happy to take any donations these millionaires want to make, even whole fortunes for that matter but to believe for a second that they will lead by example and actually give more than their 'fair share' may be the same reasoning behind the second point.
OH I can add one more thing - I think we need a tax on artists, especially actors/actresses and other movie rich people. They produce nothing but entertainment which doesn't create jobs like manufacturing does. SO it is right that industry gets the crap taxed out of them.