20 Things You Didn't Know About SPECTRE (2015)
9. Bridge Of Secrets
The filmmakers shut down London's Westminster Bridge over the course of several weekends to shoot the crash-landing of Ernst Stavro Blofeld’s escape helicopter and James Bond's confrontation with the SPECTRE leader, but the film's finale raised as many questions as it answered.
This was because no one really knew if Daniel Craig would be returning as Double-0 Seven; the original ending to the film had seen Bond shoot the villain dead, but this was shelved in favour of allowing Christoph Waltz to return if Craig did.
A highly-detailed replica of Westminster Bridge was also built on the Albert R. Broccoli 007 Stage at Pinewood Studios, surrounded by a backdrop that convincingly depicted the exterior of the Houses of Parliament and London at night.
The key players (Craig, Waltz, Léa Seydoux, and Ralph Fiennes) appeared at both locations, but the work on the 007 Stage helped when filming the more dangerous scenes, as well as those that might have revealed the true identity of Waltz’s character, as the location filming had been closely observed by the media.