For me, the Dennis Wilson story is a quintessential You Must Remember This story because it's one of these stories that people never talk about, don't really think about, and it's forgotten within this major thing that is thought to be this cataclysmic event of the 20th century.

Hollywood is really weird to talk about in this monolithic sense because it's this microcosm of anywhere. It's full of a lot of people who have different intentions and different points of view.

There's a fantastic, thousand-page book by David Thomson about [David O. Selznick]. Again, it's not the best argument or the best advertisement for his story, because most people aren't going to read a thousand-page book. But I feel like the rise and fall and the work [Mayer] produced - not just the movies, but the memos, the volume of writing - he's just so passionate, and that's really exciting.

I have a degree in cinema studies and the big paper I wrote at the end of that was about Judy Garland and Liza Minnelli. So I thought that I knew quite a bit about Judy Garland, but I read in passing that the Stonewall riots were a reaction to her death and I had never really read enough to know what that meant or how that could be true. I was interested in that I knew so much about Judy Garland, but I really didn't know this story.

I just think the David O. Selznick story is one of the great, epic stories of Hollywood history that nobody knows. Maybe one of the reasons why nobody knows it is because he wasn't a movie star.

I was trying to see if I could produce an episode - completely write it and research it and record it and edit it - all by myself in a week.

Between the action sequences, the pleasure lies in observing impeccably dressed Brits exchanging barbed witticisms - making it, basically, Downton Abbey with cyber crime and shower sex.