Comment on the technical features in the opening of Anna Karenina

This film is produced by Working Title, and is an adaptation of Tolstoy's novel Anna Karenina. It stars well known actors such as Keira Knightley and Jude Law.
The opening 5 minutes and 26 seconds of the film do not give away too much of future events, but seem to hint at potential plot lines.
This is shown through the mise-en-scene; the switches between locations are shown through apparent set changes, with backdrops coming down and people bringing set pieces onto what seems to be a stage. This suggests that the main characters lives are very much on show, and that their every actions are seen by everyone - the evident social class of the characters suggests this even further.
Their social class is suggested further by the giant pear brought to Oblonsky when he is being shaved; this shows how extravagant he is, and the fact that he seems unsure what to do with it shows that he is very unthinking.
The way that he trips on the way to the room where he finds his wife suggests that he has made a big mistake in letting himself get caught, as it implies that there is a mistake in his otherwise smooth-sailing life.
We can see that Anna is also very privileged from not only the clothes that she is getting dressed into, but also the fact that she is not dressing herself and has someone else to do it for her. This implies that she is also very important.
The sound used in the sequence is significant; we can hear voices talking initially which fade out as the action begins - this indicates that people have stopped their everyday goings on in order to look at Anna's life.
The music is very chaotic, with instruments seemingly being played backwards, which suggests that everything is going to be changed by the events that are about to occur.
The editing that is used in the sequence includes features such as match cuts, which brings the real world into the same place as the stage.
The soft lighting used whenever Anna is with her son makes her seem both motherly and caring, and shows that he means a lot to her.
The camera work in the sequence, such as the pull focus of the toy train to the real one which Anna is an effective method of changing location effortlessly.
The way that the camera follows the train when the son is controlling it cleverly suggests how Anna's family has control over her and her actions.