'' Caché '' opened at the 2005 Cannes Film Festival to critical acclaim for the performances and Haneke 's direction . Its plot ambiguities raised considerable discussion . The film has been interpreted as an allegory about collective guilt and collective memory , and as a statement on France 's Algerian War and colonialism in general . While presented as a mystery , the film does not explicitly reveal which character sends the tapes . Haneke regarded that as of secondary importance to the exploration of guilt and left the question up to viewer interpretation
2005 Cannes Film Festival
2005 Cannes Film Festival
Caché (film)