- HD 1080
- Runtime: 96m.
- Status: Released
0
- Languages: en
- Country: United Kingdom
- Director: David Drury
- Stars: Gabriel Byrne, Greta Scacchi, Denholm Elliott, Ian Bannen, Fulton Mackay
- keywords: kgb, reporter, death, newspaper man, member of parliament
- Production_studio: Enigma Productions, The Rank Organisation, National Film Finance Corporation (NFFC)
- Slogan: Just how far will a government go to hide the truth?
- The Defence of the Realm is featured in the top rankings of 1986
- #23 in Top Action Movies of 1986
- #18 in Top Thriller Movies of 1986
A reporter named Mullen 'stumbles' onto a story linking a prominent Member of Parliament to a KGB agent and a near-nuclear disaster involving a teenage runaway and a U.S. Air Force base. Has there been a Government cover-up? Mullen teams up with Vernon Bayliss, an old hack, and Nina Beckam, the MP's assistant, to find out the truth.