There have been many stories of twins having a special connection, from developing their own language to claiming to feel each other's pain. June and Jennifer Gibbons, however, shared a particularly rare bond and their mysterious story - which saw the pair spend 11 years in Broadmoor - has become so well-known that it has now been made into a film.
The identical twins, who moved to Haverfordwest when they were 11, had an unusually close bond. Excluding parents and siblings, the pair would only communicate with each other and wrote diary entries, novels, and poems from their Pembrokeshire bedroom. Due to their lack of communication, they became known as 'The Silent Twins.'
The story has inspired TV dramas and documentaries, a play, and even the Manic Street Preachers song, Tsunami. Now their story has been made into a film starring Letitia Wright (of Marvel's Black Panther) who plays June, alongside Tamara Lawrence as Jennifer. The film - The Silent Twins - premiered at the Cannes Film Festival in May and will go on release in the UK later this year. You can get more story updates straight to your inbox by subscribing to our newsletters here.