Hollywood talent (some of them) may be left-wing, but the corporations that hire them are
corporations that care far more about lowering taxes, reducing regulations, and access to American law enforcement assets: all rather right-wing goals. If you want to go after megaupload, or prevent a new internet-related tax, you want to back right-wing parties. So don't assume that any corporation with hollywood links will automatically share left-wing opinions. Their employees, movie stars, might. But in the end, financial motivations trump all.
There is also a huge right-wing movement among celebrities. Ignoring one particular rap artist, many of the older and more successful actors are right-wing icons. From Clint Eastwood and Kelsey Grammer to Mel Gibson, once you are sitting on a pile of money one's opinions tend to shift right. The biggest and most successful media organization at the moment is FOX, and the biggest television stars are the fox presenters. IIRC Judge Judy remains the highest paid TV presenter/host.
And Regan. And Trump. Both hollywood personalities.