and classical, but each scene is rendered with a great degree of realism and sense of place. Reviewer Paul A. Green wrote, "Guest and his editor Bill Lenny worked with archive footage. There's a quick shot of a fire-engine from The Quatermass Experiment – but otherwise you can't see the joins." In his commentary track for the 2001 Anchor Bay DVD release, director Val Guest stated that the sound of church bells heard at the very end of the American version had been added by distributor Universal, in order to suggest that the emergency detonation had succeeded and that the Earth had been saved. Guest speculated that the bells motif had been inspired by the film The War of the Worlds (1953), which ends with the joyous ringing of church bells after the emergency (and a nuclear explosion). But Guest maintained that his intention was to always have an ambiguous ending. In August 2014 a restored version was screened at the British Museum's summer open air cinema. The film makes one medical error. When a copy boy collapses in the news room, as a result of drinking black market contaminated water, the doctor announces he has 'typhus' and everyone has to be inoculated. Typhus is not water-borne (it is insect-borne) and neither was there an inoculation for it at the time when the film was made. The script writer probably confused typhus with typhoid fever. Typhoid is water-borne and various injection treatments did exist then. Certification The film was rated "X" (minimum age 16 admitted) by the British Board of Film Censors on its initial release. A 2001 DVD release from Network Releasing was given a BBFC DVD/Blu-ray certificate of "15" (years and over). On the 2014 BFI release, the rating was reduced to "12". Locations The film was shot in London and South East England. Principal photography included Fleet Street (the Daily Express building), Battersea Park, the HM Treasury Building in Westminster and on Brighton Palace Pier. Themes Essayist Paul A. Green discusses many of the themes in the film in his review: News media – "We see a media landscape that is largely defined through the press and its heavy-duty Gutenberg technology, and a political landscape that is defined through the Cold War ... The bustling newsroom with its exhorting wall poster slogans (Go for IMPACT!) is a nexus of conflicting information and misinformation, conjecture and rumour as