I became a director because I couldn't find anybody else to direct my scripts, so I see myself as a screenwriter first. I focus a lot on the writing process but then I like to hold several rehearsals with actors. If good things come up I integrate them into the script. It's the same during shooting, but I do rehearse a lot because at the moment of shooting I like to feel that everything is under control. I need to know that I have done my homework. This security gives me more freedom to improvise.