It's probably the last thing you think about when you're making a film is other people's problems. You're thinking about your problem, which is making the movie. But you do have a responsibility. You can't mess around with people's emotions.
Non-attachment is not the elimination of desire. It is the spaciousness to allow any quality of mind, any thought or feeling, to arise without closing around it, without eliminating the pure witness of being. It is an active receptivity to life.