I think film writing, you're thinking in pictures, and stage writing, you're thinking in dialogue. In film writing, it's also, you only get so many words, so everything has to earn its place in a really economical way. I think for stage writing, you have more leeway.
“You can have good writing, but a great actor will make it feel and sound like great writing. You can have great writing, and mediocre actors will make it feel mediocre. Without the actors, you have nothing.”
“Fifteen years before I became a screen actor, I was in the theatre. A lot of my work was comedy, which I loved doing. It's harder.”