in London during 1974. The film's action sequences included a car chase through Battersea's Shaftsbury & Winstanley Estate, Wandsworth and Central London featuring Brannigan jumping a yellow Ford Capri coupé across the half raised Tower Bridge. The jump itself was accomplished with scale models of both the bridge and the car. Ford supplied most of the vehicles used in the film, which came from their press fleet. One sequence features shots of the interior and exterior of London's Royal Automobile Club, which has changed little since the shooting of the film. The Capri's jump was one of the last significant appearances of Tower Bridge without its red, white and blue paint scheme which was applied in 1977 to commemorate the Silver Jubilee of Elizabeth II. A fight sequence was filmed in the Lamb Tavern in Leadenhall Market. The E-Type Jaguar that the hitman, Gorman, drives in the film still exists and is in the hands of a private collector today. Conversely, the film's opening sequence and first several minutes display Chicago roadways, riverside buildings and an early O'Hare Terminal 1 that have all been razed and replaced. For example, the film opens on a squad car making the former turn on Upper Lake Shore Drive where East Wacker Drive now exists and where Field Drive had been planned to intersect; in the background, iron workers can be seen constructing the connecting portion of Upper Wacker. The 300 block of North Canal Street, where Brannigan conducts an investigation using "enhanced interrogation techniques", rapidly developed between this film, Doctor Detroit, and Raw Deal, and has further developed through to the present day. As Brannigan approaches O'Hare, the Kennedy Expressway is devoid of both commercial development to the north and south, and the Blue Line tracks in the median. Likewise, West India Quay, immediately north of the Isle of Dogs has become unrecognisable with the development of the Docklands in general and Canary Wharf in particular. The location is seen as a derelict, nearly-abandoned dockside during Brannigan's confrontation with the motor-scooter messenger (Tony Robinson), and has since been radically transformed. Much of the film was also filmed in Beckton Gasworks and parts of North Woolwich and Silvertown in Newham's part of Docklands. When a hole is blown in Brannigan's lavatory wall, he looks out to see the Albert Memorial, its statue still coated in thick black paint rather than gold leaf. At the