[Elijah Wood] has got such a broad outlook. It's so much bigger than just the acting industry.

I'd seen Elijah [Wood], when I was a little boy, in The Good Son. And then, I was a huge fan of The Lord of the Rings. It took awhile to get over that whole, "That's Elijah Wood - Frodo, from The Lord of the Rings." I was a mega fan of that. I went to the all-day screenings of the director's cut, where you could see the really long versions of all three movies, in one day.

To me, Elijah Wood is one of the best actors of my generation. He's so incredibly present and in the moment, when you're working with him, and then we just chat away about anything off camera because he's a lovely guy.

Max [Landis] writes in quite a heightened way, specifically for Dirk. There's a rhythm and a specific speed to it, and it was very easy to learn because it was so well-written. It just rolled off the tongue. There aren't many auditions that I go for, where I feel like I could actually do the part. But with this one, even though I was not quite sure how to pin Dirk down, I thought I could do it.

You had to make everything much more truthful for the camera. With the stage it's a given that it's going to be theatrical.

We did every scene together, every day for four months, and it could have been a disaster, if we didn't get on, but we clicked straight away. Elijah Wood is just the nicest guy.

I read the script [of Dirk Gently's Holistic Detective Agency] and went, "I haven't read anything this good, in a long time." I thought it was absolutely brilliant. The dialogue is so sparkling, smart and witty. You also have these insane, crazy characters, like energy sucking vampires and holistic assassins. It's all completely weird.