- Country: UK
- Genres: Thriller
- Release: 1986-11-21
- Director: David Drury
- Writers: Martin Stellman
- Language: English
- Stars: Gabriel Byrne , Greta Scacchi , Denholm Elliott (1922–1992) , Ian Bannen , Fulton Mackay , Bill Paterson (I) , David Calder (I) , Frederick Treves , Robbie Coltrane , Annabel Leventon
- Runtime: 96 min
- Awards: Won 1 BAFTA Award7 wins & 2 nominations total
- AKA: Defence of the Realm , Dossier confidenziale (Italy) , Katastasi ektaktou anagis (Greece) , Conspiración para el silencio (Argentina) , Valtakunnan puolustus (Finland) , En defensa del reino (Spain) , Atom, Lüge und was kommt danach? (Germany) , В защита на кралството (Bulgaria) , As Defesas do Império (Brazil) , For rigets sikkerhed (Denmark) , Em Defesa da Nação (Portugal, Portuguese Republic) , Obrona królestwa (Poland) , Defence of the Realm (France, French Republic) , En defensa del regne (Spain) , Em Defesa da Verdade (Brazil) , Защита империи , Button - Im Sumpf der Atommafia , A Defesa do Reino (Brazil) , A birodalom védelme (Hungary) , Defense of the Realm (United States of America) , Für die Sicherheit des Königreichs (Germany) , Defence of the Realm (United Kingdom) , Dilema de um Jornalista (Brazil)
- Plot: A reporter Mullen 'stumbles' on a story linking a prominent Member of Parliament to a KGB agent. In fact it is also linked to a near Nuclear disaster involving a teenage runaway and an Americal USAF 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.
- IMDB:tt0089009
Defense of the Realm Cast · · · ALL
David Drury
Director
Gabriel Byrne
Nicholas 'Nick' Mullen
Greta Scacchi
Nina Beckman
Denholm Elliott
(1922–1992)
Vernon Bayliss
Ian Bannen
Dennis Markham
Fulton Mackay
Victor Kingsbrook
Bill Paterson
(I)
Jack Macleod
David Calder
(I)
Harry Champion
Frederick Treves
Arnold Reece
Robbie Coltrane
Leo McAskey
Steven Woodcock
Steven Dyce
Graham Fletcher-Cook
Mickey Parker
Annabel Leventon
Trudy Markham
Alexei Jawdokimov
Dietrich Kleist
Danny Webb
Danny Royce
Prentis Hancock
Frank Longman
Mark Tandy
Philip Henderson
Veronica Duffy
2nd Newsroom Deputy
David Hatton
Picture Editor
Philip Whitchurch
Cuttings Librarian
Beverly Anderson
Newscaster
Pip Miller
Police Sergeant Ross
John Rees
Minister at Funeral
Noel Johnson
Club Member
Hubert Rees
Club Waiter
Oliver Ford Davies
Anthony Clegg