I haven’t heard much being said about this, so, even though it’s a bit late I think it’s worth mentioning.
Back in 2014 Film4 hosted an Innovation Forum which did an indepth look into the films ‘Frank’ (which I love!!!!) and ‘20,000 Days on Earth’. There is a page about the event here, but, I want to hilight the below-linked article which summarizes the day and gives you a series of amazing video links to talks from the event.
This kind of insight into real-world experiences is hard to come by in this business.