Prince Albert Of Monaco and his sisters Stephanie and Caroline have released a statement criticising Nicole Kidman's much-anticipated movie about their mother two weeks before the film's glitzy premiere at the Cannes Film Festival in France. Director Olivier Dahan's Grace Kelly biopic Grace of Monaco will open the Cannes Film Festival on 14 May (14), and the Monaco royals want to make sure that everyone knows they hate the depiction of the late actress, who became Princess Grace after marrying Prince Rainier III in 1956. In a statement released on Friday (02May14), Albert and his sisters claim the film is a "farce", adding, "The Prince's Palace would like to reiterate that this feature film cannot under any circumstances be classified as a biopic. "(The trailer) reinforces the certainty, left after reading the script, that this production, a page of the Principality's history, is based on erroneous and dubious historical references. "The Princely Family does not in any way wish to be associated with this film, which reflects no reality and regrets that Its history has been misappropriated for purely commercial purposes." In the film, Kidman portrays Grace Kelly as she transitions from Hollywood actress to European royal. The movie has been hit with a series of dramas and delays - the director and movie boss Harvey Weinstein are currently at odds over the finished project. Weinstein and his producing partners scrapped the film's American March (14) release following a dispute with Dahan, who took aim at the movie mogul in an interview last October (13), stating, "When you confront an American distributor like Weinstein, not to name names, there is not much you can do... They want a commercial film, taking out everything that's (real) cinema."