German director Michael Haneke is not everyone's cup of tea. Like a number of European "auteurs" through film history, his movies tend towards the philosophical if not existential, and because of this they can be both exciting and infuriating in equal measure. The Piano Teacher had all the repressed sexuality of Belle de Jour at its best, yet his "Hollywood" re-make of horror-in-the-cabin-in-the-woods thriller Funny Games seemed unnecessary to say the least. Hidden is probably the movie he is most well-known for in both Europe and America and while not perfect - and the plodding plot and anxious silences are not the stuff of modern-day British and American thrillers for sure - the mood of the piece, and the brooding atmosphere of some terrible event to come, is to be admired here. Daniel Auteuil and Juliette Binoche deliver terrific performances as a couple with secrets, pasts and dilemmas all stored up and ready to burst forth the moment a series of videos of them and their home start appearing at the door. And if you do want to get all intellectual about it, the film is something of a commentary on our increasingly Facebook/Twitter/blogging-obsessed lives and how so little of what we hold as private and dear can be kept so in the modern age. But the movie is also just a great psychological thriller. Slow, meditative and self-conscious? Yes, and that's why it won't be everyone's idea of a Friday night picture with pizza. The film's shocking moment and denouement won't necessarily inspire all either, but cinema ought to be thoughtful and provocative at times as well as entertaining and forgettable at others. Whatever you might think of Haneke, his films are never the last of these descriptions.