I think improvisation is really crucial in terms of making things feel real and authentic.

My casting process was slightly different and slightly interesting insofar as I knew everybody could act. That's something you've seen. You know people can. You've seen them on the screen and you think either they're a good actor or a bad actor. So that's not the point. What I wanted to do was find people who I thought would have a similar comic sensibility.

And then, movie-wise, I'm writing a couple of things. They're all comedies. It's the only way I know. I'm also being sent scripts, which is really nice, kind of off the back of this, so I don't necessarily have to generate my own stuff. I'm just looking for something that's explosively funny and relatable in equal measure.

In terms of magnifying it and making it plausible, I'm a great believer in truth in comedy.

To me, there was an interesting movie to be made about two people who had been on that whirlwind romance and what happens after the fairy tale wedding. And this thought coincided or coalesced when I was at a wedding of a friend who got married to somebody that literally everybody in the congregation thought that you definitely should not get married to. This was the worst idea either of you have ever had.

It's tough to make funny films. And the truth is, with this process, especially if you write your own movie, then you're giving three years of your life to it. And so, I just have to be sure that when I embark on it that I'm happy to think that in three years' time I'm going to be sitting in a room on the tenth floor of an odd office building at Ginsberg Libby talking about it. So I'm keen not to jump into it too quickly and just make sure it's something that I really want.

I think improvisation is really crucial in terms of making things feel real and authentic.