Takaisin pintaan
(Original title)
Dykningen in i det okända
Finland (swedish title tv title)
Merülés az ismeretlenbe
Hungary (festival title)
Un tuffo nell'ignoto
Italy
Dødsdykket i Plurdalen
Norway (tv title)
Nurkowanie w nieznane
Poland
Okända djup
Sweden (alternative title)
Diving Into the Unknown
UK
Diving Into the Unknown
USA