You shouldn't talk while others are enjoying a movie.
Britney is watching a movie with her friends in a movie theater.
Britney wants her friends to know how she feels about what is happening in the movie.
Britney communicates with her friends by making silent faces, i.e. sad, amused etc. during the movie.
Britney talks to her friends during the movie to let them know how she feels about it.
The people seated near Britney can enjoy the movie in peace.
People seating near Britney can't hear the movie because of her incessant talking.