I worked in entertainment for a while, some people have JDs, some have MBAs, either way getting in to these job is tough.
Part of the reason is that its such a specific field many times the only people who are good at it have been around for a while and worked there way up.
Some of the biggest names in entertainment started as mail room guys in talent agencies.
Of course there are room for MBAs, but it would be at larger places.
My friend is in finance at Sony, he went there after a couple years at Blackrock and no MBA.