Originally titled Koko i duhovi, development for the film began in October 2010 as a co-production between HRT, Kinorama and Continental film.
Koko Taylor | Army of Ghosts | The Ghosts of Versailles | Koko the Clown | Koko B. Ware | Koko | The Hungry Ghosts | Koko (venue) | Koko Head | Ghosts of the Great Highway | Ghosts of Mississippi | Ghosts of Loss | Ghosts of Girlfriends Past | Emperor Kōkō | Chasing Ghosts (album) | Chasing Ghosts | Transformers: Ghosts of Yesterday | Thirteen Ghosts | The Ghosts of Berkeley Square | Little Ghosts | Koko Tsurumi | Koko River, Rutsiro District | Koko River, Rusizi District | Koko Komégné, ''Nje Mo Ye'', Douala, 2007 | Koko (gorilla) | Koko ga Hen da yo Nihonjin | Koko: A Talking Gorilla | Hungry ghosts in Chinese religion | Grim Grinning Ghosts (The Screaming Song) | Grim Grinning Ghosts |