How does Casino Royale use conventions of film noir, and what meanings/connotations are created?

The opening scene to James Bonds "Casino Royale" is shot completely different to the remainder of the film, while the rest of the film varies far away from the traditional film noir, the opening, shot in black and white uses many film noir conventions.

This first shot to the opening of "Casino Royale", set as a long shot so that the entire outside of the building and some the surrounding can be captured shows a lamppost located central. From some of the very first thriller films a lamppost has been used as an iconic location, another example of this is in "Scarlet Street", the main poster shows the femme fatale character, Kitty, leaning against a lamppost. While the rest of scene remains very much in darkness, the lamppost adds light to the area projecting enigma and allows the audience to see very little detail.

A business office is seen as the main location in this scene, this would suggest that the characters located inside, or arriving, are of high class. Other film noir films will always have a rich business man as one of the main characters, so in this scene without seeing any characters the audience can already see similarities. 

The first character the audience gets to see is of a man dressed in a business like fashion. A suit would suggest that the man has wealth and this is an iconic look used throughout film noir, this would also suggest that the man is not out of place being at a group of offices. 

His facial expression appears to be very serious, this sets the mood for the rest of the scene and suggests to the audience that he is a task to carry out within the office complex which he wishes to complete.
Moral ambiguity is shown by the light and the dark on the characters face, this shows that his morals are very conflicting. The character looking into the distance it creates a sense of foreboding and makes the audience wonder what will hsappen next.
A low angle shot is used, this suggests that the man has power and is someone of importance. It also portrays him as being a much larger character and that whoever is located inside the office should be scared of him. 

This shot mixes old with new. A gun is an iconic weapon used throughout all film noir since it first began, this shows the audience that "Casino Royale" is using some traditional features. The gadget located next to it appears to be new, this shows that the film has taken on some new features while still trying to mix old with new. 

This is the first shot the audience gets to see of James Bond, having the character viewed in half light and half in darkness shows that his morals may be very conflicting. The lighting used also makes us wonder if he is the hero of the story or the bad guy, alike the other character he is also dressed in a business like fashion and wears a very serious expression. The lighting used across half of his face appears to be artificial and adds more enigma to the seen. Alike traditional film noir features, lighting and shadows are used well to confuse the audience and make it more mysterious. 

And finally from this shot, the camera is zoomed in to show facial details and some of the surroundings, the man appears to look more worried than in the first scene of him, this makes the audience believe he may be the victim. Alike film noir the character seems to be in a more closely in closed space, this shows claustrophobia and also increases the amount of worry the character has, this is used a lot in film noir to show a difference in mood. 

The lighting appears to be coming from behind him, this shows that its artificial as its dark outside, this helps to give the scene a very harsh mood.