I read an interesting economic analysis of this on a business sight that was talking about the fact that Hollywood doesn’t care. The reason is because profits are up. There are no mega-bombs like last year. Also, there are not a large number of (expected) mega-tent polls this year. So while raw numbers are down, they are making MORE money than last year.
And in the end, that is ALL Hollywood is about ... making money.
Also overseas has become as much or even more important for movie profitability. The recent Transformers had huge box office in mainland China.
They make more money on movies overseas now than from the US.