A martial arts movie called Legend of Qin has required certain cinemas in China to install "bullet screens." These screens allow for theatergoers to live comment during the film, with the comments scrolling alongside the movie.
The version of the film with live-commenting has been screened over 500 times in 11 cities thus far. There are plans to add more bullet screens to other Chinese cities and theaters.
Read more here on PSFK.