David Lindsay-Abaire

Film is mostly a visual medium, and so the director has much more control in terms of painting pictures and painting a performance. For theater, the director does everything he can and then says, 'Out you go,' and the actors are in charge of that stage every night.

Pretty much, the writer's in charge in theater. Of course you're in charge with the director, but no one can change your words. People can give you notes, but you don't have to take them. In Hollywood you take them and you cash your check and that's your job. It's very different.

Frankly, as much as I love to improvise, it hasn't been difficult to stick to the script on 'Mad Men.' The writing is so precise, and the story so carefully crafted, that I don't think there's room - or need - for ad libbing. I could never come up with dialogue as lovely as these writers do, anyway.