Imprisoned during the Spanish Civil War, John "Kit" McKittrick is released when a New York City policeman pulls some strings. Upon returning to America, McKittrick hears that a friend has committed suicide, and he begins to smell a rat. During his investigation, McKittrick questions three beautiful women, one of whom has a tie to his refugee past. Pursued by Nazi operatives, McKittrick learns of the death of another friend, and begins to suspect the dark Dr. Skaas.
Unfortunately the movie The Fallen Sparrow is not yet available on HBO Max.
| Directing | Richard Wallace | Director |
| Production | Robert Fellows | Producer |
| Writing | Warren Duff | Screenplay |
| Camera | Nicholas Musuraca | Director of Photography |
| Editing | Robert Wise | Editor |
| Writing | Dorothy B. Hughes | Novel |
| Sound | Roy Webb | Original Music Composer |
| Sound | Bailey Fesler | Sound Recordist |
| Sound | James G. Stewart | Sound Re-Recording Mixer |
| Costume & Make-Up | Edward Stevenson | Costume Designer |
| Art | Harley Miller | Set Decoration |
| Art | Mark-Lee Kirk | Art Direction |
| Art | Darrell Silvera | Set Decoration |
| Art | Albert S. D'Agostino | Art Direction |
| Sound | C. Bakaleinikoff | Music Director |
| Directing | Sam Ruman | Assistant Director |
| Art | Van Nest Polglase | Production Design |
| Crew | Vernon L. Walker | Special Effects |
