The film has an 84 % approval rating of critics tracked by Rotten Tomatoes , which described the critical consensus as " this starkly minimalist nail-biter of a thriller relentlessly builds up the tension and keeps the audience guessing . " The film won the World Cinema Jury Prize at the 2006 Sundance Film Festival . It also won two awards at the 62nd Venice Film Festival
62nd
62nd Venice International Film Festival
13 Tzameti