This is a study supporting my theory that a cinematic experience with a group of people is bringing more enjoyment then simply watching the film on its own, and if you are able to share your enjoyment while watching the film (something that can only be achieved to a small degree in traditional black - box - all -people - quite cinemas) the films becomes even more enjoyable.
Taking that theory a Live Cinema experience that is tailored to a room full of people talking to each other in the first place (bar, club, lounge) would produce exactly that result - if the people enjoyed and understood the experience in the first place (wallpaper doesn´t count).
By mimicking expressions, people catch each other's moods leading to a shared emotional experience. That feels good to people and they attribute that good feeling to the quality of the movie