What is most interesting about this film is that watching it you find that you are constantly baffled. Apart from the fact that it is episodic and, jumping from one setting to another without explanation or warning, is somewhat confusing, one is also constantly aware that there is a depth and meaning to the film but that, in the end, unfortunately, it does not work very well.
The answer to the question of why it does not work lies in the fact that it is an adaptation of a very successful stage play, written by award winning playwright, David Hare, which, despite the considerable efforts of a fine cast of actors, including Meryl Steep, John Gielgud, Sam Neill, Charles Dance, a younger Ian McKellen and Sam Neil, does not really translate well into film. The film also features, rather surprisingly, the comedic talents of Tracey Ullman and, most unusually, the singer Sting in a relatively minor role.
Despite, or perhaps because of, its unusual nature, the film is, in my opinion, worth a watch if only for the performances of its substantial cast.