I am not a fan of improvisation, because it bores me. Working off a tight scenario gives you the confidence and ability to - why don't we change this a little bit and bring it back to the script. You always discover things while shooting.
Nicolas Winding RefnThe casting of any film is around 60% of the film, but it's also about the right casting insight. It's a bit like a house of cards, everyone has to match up in a certain way so the whole structure is grounded. So that's essential, and yes, it's about finding the right people and the right constellation around the lead character.
Nicolas Winding Refn