The woman is a photographer and is developing a photo of her husband.
Answer:
A screen director does not relinquish control on opening night in the way that a stage director does. The director remains in control of pace, structure, builds and reactions as he or she works with the cinematographer and editor to stitch together a disparate collection of shots, score, sfx, cgi, audio, etc into a whole movie. The pauses, builds, responsiveness to an audience that actors read and manage on stage are the business of the director in a screen production. Once the actors have gone home there is still major work to do before it reaches the audience.
