Cassies Stuart leads the uncooperative Charles Dance into a world of misplaces government secrets, capalistic artists and bungling secret agents. Will the truth be out, or will the attempts of agents suppress the truth hidden within government propaganda films, classified as top secret by complete mistake, be successful. Or is it the mysterious medical records that are the true catch of the spies.
Unfortunately the movie Hidden City is not yet available on HBO Max.
| Writing | Stephen Poliakoff | Writer |
| Directing | Stephen Poliakoff | Director |
| Sound | Michael Storey | Original Music Composer |
| Production | Gail Stevens | Casting |
| Art | Alistair Paton | Art Direction |
| Directing | Tony Dyer | Second Assistant Director |
| Directing | Peter Jaques | Assistant Director |
| Camera | Witold Stok | Director of Photography |
| Camera | John Gibson | Camera Operator |
| Costume & Make-Up | Daphne Dare | Costume Design |
| Costume & Make-Up | Madeleine Masters | Makeup Artist |
| Art | Martin Johnson | Production Design |
| Production | Irving Teitelbaum | Producer |
| Costume & Make-Up | Stephanie Kaye | Hairstylist |
| Editing | Peter Coulson | Editor |
| Production | Ron Purdie | Associate Producer |
| Directing | Dominic Allan | Third Assistant Director |
| Sound | Malcolm Hirst | Sound Recordist |