Everyone forgets that what's fun about a romantic comedy is how these two people are going to fight with each other and how's that going to be funny.

I've been putting together the story with Rob and putting all the details of it together and looking at all the various designs they have for the toys and stuff, it's pretty exciting.

I feel very creatively satisfied and lucky that I get to write for other people, but for something I direct, it has to be something I completely understand every facet of.

I remember like that scene with Pharrell where they're at the music video shoot, we have this on camera actually, Pharrell's confused because we weren't doing the script. We were doing all this improv and then Diddy says to him... Pharrell's like I don't understand what's going on and Diddy goes, "We do a lot of improv". (laughter) I remember being we just made him into a comedy nerd. We somehow turned Sean Combs into a comedy nerd, so.

I like writing for other people. I love it. It's great because you write it and then you hand it off to someone else. But in terms of directing, anything I direct will be something I've written or re-written. I'm in no crazy rush to direct.

I mean I certainly like when I'm like talking to people I'm like what did you think, what did you think, what did you think? You know that's always in the back of my head.

I was born in England - though both of my parents are American - and there's something about the 'Muppets' where they have this combination of English and American humor.