The 24-year-old 'Noah' star is looking terrified standing alongside her on-screen lover, played by Bruhl, 36, in the picture which Watson posted on her Facebook, reported Ace Showbiz.
"Here's an exclusive new photograph from COLONIA for Emma's Facebook fans! The film will be released late 2015."
Bruhl is playing the role of Daniel, a German citizen who was kidnapped by General Augusto Pinochet's secret police DINA during the protest against Pinochet.
Watson is playing Lena, wife of Daniel, who has to join the cult "Colonia Dignidad" to rescue her husband.