Unknown to everyone but his shady Middle Eastern bosses, watchmaker Hawkins is actually a professional hired assassin with a predilection for killing his targets with bombs. After disposing of a dictator and millionaire, Hawkins is assigned to kill a politician who is heading to a remote hotel, The Green Man, for a secret tryst with his secretary. There, however, Hawkins' plot is discovered by vacuum salesman William Blake, who determines to stop him.
Unfortunately the movie The Green Man is not yet available on HBO Max.
| Directing | Robert Day | Director |
| Sound | John Glen | Sound Editor |
| Writing | Sidney Gilliat | Theatre Play |
| Writing | Frank Launder | Theatre Play |
| Production | Sidney Gilliat | Producer |
| Production | Frank Launder | Producer |
| Directing | Basil Dearden | Director |
| Camera | Alan Hume | Camera Operator |
| Editing | Bernard Gribble | Editor |
| Costume & Make-Up | Trevor Crole-Rees | Makeup Artist |
| Crew | George Samuels | Special Effects |
| Directing | Douglas Hermes | Assistant Director |
| Sound | Buster Ambler | Sound Recordist |
| Writing | Frank Launder | Screenplay |
| Costume & Make-Up | Anna Duse | Costume Designer |
| Art | Wilfred Shingleton | Art Direction |
| Production | Leslie Gilliat | Associate Producer |
| Writing | Sidney Gilliat | Screenplay |
| Sound | Muir Mathieson | Conductor |
| Production | John Pellatt | Unit Manager |
| Sound | Cedric Thorpe Davie | Original Music Composer |
| Sound | John Cox | Sound Supervisor |
| Directing | Olga Brook | Continuity |
| Costume & Make-Up | Bill Griffiths | Hairdresser |
| Sound | Red Law | Sound Recordist |
| Camera | Gerald Gibbs | Director of Photography |
| Crew | Wally Veevers | Special Effects |
| Sound | Ken Ritchie | Boom Operator |
| Crew | Basil Mannin | Scenic Artist |
