Jesse W. Haywood (Don Knotts) graduates from dental school in Philadelphia in 1870 and goes west to become a frontier dentist. Penelope "Bad Penny" Cushing (Barbara Rhoades) is offered a pardon if she will track down a ring of gun smugglers. She tricks Haywood into a sham marriage as a disguise. Haywood inadvertently becomes the legendary "Doc the Haywood" after he guns down "Arnold the Kid".
You can now watch The Shakiest Gun in the West online on the following streaming providers in the United States.
| Writing | Everett Greenbaum | Screenplay |
| Directing | Alan Rafkin | Director |
| Writing | Frank Tashlin | Screenplay |
| Writing | James Fritzell | Screenplay |
| Writing | Edmund L. Hartmann | Screenplay |
| Sound | Vic Mizzy | Music |
| Art | Henry Larrecq | Art Direction |
| Production | Edward Montagne | Producer |
| Costume & Make-Up | Grady Hunt | Costume Design |
| Editing | Tony Martinelli | Editor |
| Art | Alexander Golitzen | Art Direction |
| Crew | Polly Burson | Stunt Double |
| Camera | Andrew Jackson | Director of Photography |
