There was this film. I think it was Spanish and it was about a chap stuck in a phone box - quite an old 'art house' type film.
Here's a quick IMDB synopsis . . . no happy ending. Only seen it once years ago on TV but it really gave me the creeps. Are you SURE you want to mess with phone boxes Karen
La Cabina is a film constructed on simplicity and brilliance. The story about a man trapped inside a public phone-booth starts off as a comedy and then gradually spirals into a surreal nightmare from which there seems no escape. This short film is rich in symbols and metaphors about loneliness and alienation in the urban landscape. How ironic that we have our main protagonist trapped, like a fly inside a glass jar, he wants to communicate his terror but the telephone is out-of-order and we bear witness to his growing unease and dread. Human dialogue is kept to a bare minimum and it feels like a silent film with a dream-like quality which becomes claustrophobic.
This stark film has an atmosphere that sears the mind and emotions of viewers and the residue it leaves behind remains long after the film has finished. The haunting and creepy cinematography is suffused with suspense and unseen menace. Terror prowls about as we watch with dried mouths. A complete masterpiece of the genre that would have Hitchcock turning livid with envy.
** edit to say just found it on you tube and rewatching it . . .