BTS: This is a great example how to achieve contrast in close ups. On the left of the two ARRI Alexa cameras my gaffer placed two floppys for negative fill, behind the two cameras we had an ARRI M40, bounced against a white board for a soft light. We also used a black flag to minimize light coming into the room. I always tried to have 2 stops difference on close ups. So if I have an F5.6 on the key light side of the face, the other side of the face has to be F2.8. This adds contrast and more atmosphere to your scene.