An authoritarian rancher rules an Arizona county with her private posse of hired guns. When a new Marshall arrives to set things straight, the cattle queen finds herself falling for the avowedly non-violent lawman. Both have itchy-fingered brothers, a female gunman enters the picture, and things go desperately wrong.
You can now watch Forty Guns online on the following streaming providers in the United States.
| Directing | Samuel Fuller | Director |
| Writing | Samuel Fuller | Screenplay |
| Production | Samuel Fuller | Producer |
| Art | John B. Mansbridge | Art Direction |
| Sound | Harry Sukman | Music |
| Editing | Gene Fowler Jr. | Editor |
| Camera | Joseph F. Biroc | Director of Photography |
| Art | Chester L. Bayhi | Set Decoration |
| Art | Walter M. Scott | Set Decoration |
| Costume & Make-Up | Charles LeMaire | Costume Design |
| Costume & Make-Up | Leah Rhodes | Costume Design |
| Costume & Make-Up | Robert J. Schiffer | Makeup Artist |
| Costume & Make-Up | Joan St. Oegger | Hairstylist |
| Production | William Magginetti | Production Manager |
| Directing | Harold E. Knox | Assistant Director |
| Art | Leigh Carson | Property Master |
| Sound | Harry M. Leonard | Sound |
| Sound | Bert Schoenfeld | Supervising Sound Editor |
| Sound | Jean L. Speak | Sound |
| Crew | Norman Breedlove | Special Effects |
| Crew | Chuck Hayward | Stunts |
| Crew | Leroy Johnson | Stunts |
| Crew | Chuck Roberson | Stunts |
| Crew | Jack N. Young | Stunts |
