People would say, "Well yeah, if I wrote action films, if I wrote the trash that you write, I could make millions too. But I want to write my real movie about these Guatemalan immigrants, and how they hid under a truck for 300 miles." And that's fine. I'd love to make that film too, but to dismiss everything I did just because it's action seems wrong.

Here's what I didn't know when I was starting out that I now know…I thought when you were starting out it was really hard to write because you hadn't broken in yet, you hadn't really hit your stride yet. What I found out paradoxically is that the next script you write doesn't get easier because you wrote one before…each one gets harder by a factor of 10.

It really started after The Long Kiss Goodnight sold for just a sinful amount of money. People were angry that I took the money. People offer you $4 million for a script - what are you going to say? "No, I'd rather sell it for $100,000"? But it engendered so much anger, I lost friends over it. And no one talked about the creative content of anything I did any more. They all just assumed I was this guy with a formula, a hack formula.

An action film can have too much action; picture an equaliser on a stereo, with all the knobs pegged at 10. It becomes a cacophony and is, ultimately, quite boring.

I'll say, what makes me happy about making movies is, every once in a while through movies we find a kind of honesty. There's an honesty in fiction that's as effective or even more powerful than the honesty of our lives. We can find something that's genuinely true, like a chemistry between people or a statement that speaks to an audience.

The Nice Guys movie was the first time in my career where what I wrote on the pages is on the screen. I'm more proud of it than anything else I've done. It is effectively what I wanted. If this movie's bad, it's my fault. It's not somebody else who changed or censored or edited it. This is the stuff I wanted, and that's what's on the screen, and if you don't like it, it's my bad.

The worst of the action films are the ones where everything is one shout from beginning to finish. And there's no differentiation between beats, like small or big, or quiet or expansive. It's all just one loud shout.