The Cinema Subtitling System, which can supply subtitles to individual seats, sounds quite neat.

‘CSS also has a feature dubbed Reverse Window (see graphic), which can provide subtitles for specific seats, so that not everyone has to see them…The selected seats each have a screen in front of them, like the autocue screens that politicians use to make speeches. The top part is clear, allowing the person to see the film, while the bottom part is silvered so that it acts as a mirror and reflects the subtitle text from the back of the theatre.’