The good thing about being in advertising was a lot of the skills cross over: you have to be accountable for your jokes; you have to tell a story quickly. It's the most expensive filmmaking foot-for-foot in the world, so it does teach you how to use all of the machines and how to think of things in terms of the physical process of capturing the images. And you have to sell your work. You have to walk into whatever it is and stand up in the middle of a conference room with a storyboard in your hand and make people laugh.

You learn to do your best writing on story rather than off story. Very often at the beginning of their careers, writers including me do their best dialogue writing off story - the best lines, the best observations - but they haven't got enough to do with the plot to stay in.

It's hard to hand a script to a director, there's no question about it. You've lived with these characters, you've started with a blank page, especially when it's an original work and something not based on a preexisting piece of material. But if you don't like it, write a novel.

Sometimes you go against what they say because you believe in it anyway.

The stand-up really helped because you know the feeling when something feels true, and you know the feeling when it feels false. You don't ever want to give an actor the feeling of it being false, because you know how unfair that is.

Your favorite story, whatever it might be, was written for one reader

You want to surround yourself with people who are as dedicated to their discipline as you are to yours and let them do what they do.