Filming thumb|250x250px|Busy areas of Central London, including Westminster Bridge, had to be filmed early in the morning or while the crew briefly closed streets for the film's opening sequence. The film features scenes set in normally bustling parts of London, such as Westminster Bridge, Piccadilly Circus, Horse Guards Parade and Oxford Street. To depict these locations as desolate, the film crew closed off sections of street for minutes at a time, usually on Sunday mornings. They typically had around 45 minutes after dawn to shoot the locations devoid of members of the public and traffic.
Filming thumb|250x250px|Busy areas of Central London, including Westminster Bridge, had to be filmed early in the morning or while the crew briefly closed streets for the film's opening sequence. The film features scenes set in normally bustling parts of London, such as Westminster Bridge, Piccadilly Circus, Horse Guards Parade and Oxford Street. To depict these locations as desolate, the film crew closed off sections of street for minutes at a time, usually on Sunday mornings. They typically had around 45 minutes after dawn to shoot the locations devoid of members of the public and traffic.