It might be put in terms of working around others. Ideally, the noise others make will enter subconsciousness enough to concentrate yet remain aware of anything 'worth' listening to or someone snapping in my face. Basically, you just have to experiment on yourself. Do what feels right for you. If someone's constantly fighting for concentration against surroundings, then that person needs to change surroundings. And moods constantly change.
Emotions are humanity. Life is real life. Moreover, good movies are far more than mere fiction or the sum of their parts. To people with vivid imaginations and deep empathy, any [medium of information], "fact" or fiction, powerful enough, can be experienced viscerally as with "real life" even if only in that moment.