@VladmirsPoutine
I think a lot of this behaviour goes on in a lot of industries and can be very low level stuff - by that I mean there are certainly things that have happened to me that I have 'explained away' to myself because it didn't amount to much. Thinking back on it it was categorically wrong but my point is all this behaviour adds up till it becomes something like this. So all the 'why now!' 'how could this have happened' is actually unhelpful.
It's a mix o things I think.
There is always going to be a line, and a guy like this will walk that line in a very deliberate way.
I've occasionally heard a person say they would like a workplace where there is never any physical contact or you could never ask a person out at work or all off colour jokes are out. Which they are entitled to think but I don't think most people want the line to be quite that tightly drawn and you can't really change this kind of thing without a certain amount of buy in. So someone predatory will always pick the things that could be interpreted in different ways or where it seems ambiguous. And since we can't see into their heads we aren't sure.
The film industry however is especially prone, is for a lot of reasons - people become star struck, there is a lot of money, too many people wanting to get ahead compared to those who will so those who get ahead have to put up with a lot or even be willing to be unprincipled.
But I think film is especially difficult because the industry already asks young women to be loose with their sexual boundaries, and sell themselves as a sexual commodity. It has to affect how people in the industry think about tractional sex, how the women feel about themselves. They learn to put up with it, or the competition selects for those who are willing to trade on it. And those people end up setting the pattern that others feel the need to follow.
Predators will be able to thrive in an environment like that, and I think that it can probably create predators too.