Andrey Zvyagintsev 's 'The Return' is my favourite film to date of the 21st century. 'Elena', a personal drama that illuminates the class structure in contemporary Russia, is not quite so powerful – it's very slow, and the ambiguity of motive that drove the earlier film is not there. And on first viewing it wasn't clear to me whether the shocking but strangely ambivalent ending is a work of genius or the sign of a film that has lost its focus. Still, the director's ability to construct haunting, unexpected images has not deserted him; some scenes reminded me of Keislowski in his Polish phase, just about the highest praise I can give.