Masterpiece or masquerade? Lars von Trier's digicam musical split the critics in two when it debuted at last year's Cannes film festival. There were those who saw it as a cynical shock-opera from a manipulative charlatan, others wept openly at its scenes of raw emotion and heart-rending intensity. There is, however, no in-between. Dancer In The Dark is that rarest of creatures, a film that dares to push viewers to the limits of their feelings.

In her first, and most probably last screen performance (she has foresworn acting after her bruising on-set rows with von Trier), brittle Icelandic chanteuse Björk plays Selma, a Czech immigrant living in a folksy American small town with her young son Gene. Selma is going blind and so will Gene if she does not arrange an important operation for him. To cover the expense, Selma works every hour she can, cheating on her eye tests so she can keep working at the local factory long after her vision has become too unreliable to work safely. She sublets a house from local-cop Bill (David Morse) and his wife, Linda (Cara Seymour). When nearly bankrupt Bill asks Selma for a loan she refuses, but he later returns and steals the money, which she demands back in a furious confrontation. In the ensuing mélee, Bill is fatally shot and Selma is arrested and put on trial. Will justice prevail?

Von Trier's passionate, provocative film runs all our emotional resources dry with suspense, giving us occasional flashes into Selma's gold heart and mind with superb song-and-dance numbers she conjures to banish the nightmare (Björk also wrote the score). At some two-and-a-half hours, it's not for lightweights, but anyone bored with today's smug, "ironic" cinema will relish this as an astonishing assault on the senses and a stark reminder of Von Trier's uncompromising talent. --Damon Wise