I'm not linking to them here, but there have been plenty of lip-licking posts from various gossip and news sites about the private e-mails of Sony executives being recently hacked and revealed to the public.
Here's a few things I processed from what little I've read:
1. Studio execs still love to bad-mouth actors.
2. Women still aren't being paid as much as men.
3. It's more likely that disgruntled employees are behind this--not North Korea.
4. THE INTERVIEW had its climax toned down for the US version--and it will be removed for overseas viewing.
5. For an exec and a producer, it's not yet a post-racial society (regarding certain comments about President Obama and what movies/actors he may/may not like).
In conclusion, today's Hollywood isn't much different than, say, four decades ago.
[UPDATED 4/16/15: Wikileaks has re-released files; Sony has objected on privacy grounds. At this point, the only thing I found worthy of public notice is current Sony exec Michael Lynton is on the board of famous think tank The Rand Corporation.]