While working in England, an American surgeon Dr. John Marlowe is invited to Vosnia (a fictitious East-European country) to receive an award and demonstrate his life-saving surgery. Unwittingly caught in the middle of a dangerous and corrupt series of political events, Marlowe then becomes the object of a shoot-to-kill, vicious pursuit. Fleeing, he seeks help from an English-speaking actress, Lisa Robinson, and the two attempt to escape across the treacherous mountains of Vosnia.
Unfortunately the movie State Secret is not yet available on Disney Plus.
| Costume & Make-Up | Michael Morris | Makeup Artist |
| Directing | Paddy Arnold | Continuity |
| Art | Wilfred Shingleton | Art Direction |
| Production | Leslie Gilliat | Production Manager |
| Camera | Robert Krasker | Director of Photography |
| Sound | Lee Doig | Sound Editor |
| Production | Frank Launder | Producer |
| Directing | Guy Hamilton | Assistant Director |
| Writing | Roy Huggins | Novel |
| Editing | Thelma Myers | Editor |
| Directing | Sidney Gilliat | Director |
| Production | Sidney Gilliat | Producer |
| Camera | Edward Scaife | Camera Operator |
| Writing | Sidney Gilliat | Screenplay |
| Costume & Make-Up | Beatrice Dawson | Costume Design |
| Sound | William Alwyn | Original Music Composer |
| Sound | Alan Allen | Sound Recordist |
| Costume & Make-Up | Ivy Baker | Costume Design |
| Art | Kenneth McCallum Tait | Assistant Art Director |
| Camera | Gerry Fisher | Assistant Camera |
| Costume & Make-Up | Waleen Whitworth | Hairdresser |
| Art | John Hawkesworth | Assistant Art Director |
| Sound | Muir Mathieson | Conductor |
| Production | Cyril Coke | Producer's Assistant |
| Editing | Derek Armstrong | Assistant Editor |