Twee echtgenoten die hun vrouwen wantrouwen, huren de diensten van een recherchebureau in New York in om hen te volgen. Rechercheur John Russo (Ben Gazzara), een rokkenjager, moet Angela Niotes (Audrey Hepburn), de mooie en elegante vrouw van een rijke koopman, in de gaten houden. Charles (John Ritter) en Arthur (Blaine Novak) van hun kant zullen in de voetsporen treden van Dolores Martin (Dorothy Stratten). De zaken worden ingewikkeld wanneer John verliefd wordt op Angela en Charles de Dolores.
Nee, helaas is They All Laughed nog niet beschikbaar op Netflix in Nederland.
| Writing | Peter Bogdanovich | Writer |
| Writing | Blaine Novak | Writer |
| Directing | Peter Bogdanovich | Director |
| Crew | Konrad Sheehan | Stunts |
| Camera | David J. Schweitzer | Second Assistant Camera |
| Costume & Make-Up | Grazia De Rossi | Hairstylist |
| Costume & Make-Up | Nilo Jacoponi | Makeup Artist |
| Art | Daniel Robert | Props |
| Sound | Michael Hilkene | Supervising Sound Editor |
| Camera | Patrick McGrath | Grip |
| Editing | Fred Rosenberg | Assistant Editor |
| Directing | Henry J. Bronchtein | Second Assistant Director |
| Camera | Catharine Bushnell | Still Photographer |
| Camera | Allen Hansen | Grip |
| Costume & Make-Up | Mary Ellen Winston | Costume Coordinator |
| Costume & Make-Up | Bill Christians | Wardrobe Supervisor |
| Costume & Make-Up | Jean Frisbie | Wardrobe Supervisor |
| Editing | Miriam Weeks | Assistant Editor |
| Production | Martin Danzig | Unit Production Manager |
| Production | Blaine Novak | Producer |
| Production | Russell Schwartz | Associate Producer |
| Sound | Mel Metcalfe | Sound Mixer |
| Camera | Edward Lachman | Camera Operator |
| Costume & Make-Up | Verne Caruso | Hairstylist |
| Directing | Candace Suerstedt | First Assistant Director |
| Editing | Sonya Sones | Assistant Editor |
| Art | Joe Bird | Set Decoration |
| Sound | Richard Tyler | Sound Mixer |
| Directing | Robert V. Girolami | First Assistant Director |
| Camera | Douglas C. Hart | First Assistant Camera |
| Camera | John Mazzola | Grip |
| Editing | Catherine Peacock | Assistant Editor |
| Production | George Morfogen | Producer |
| Crew | Parmelee Welles | Scenic Artist |
| Sound | Ray West | Sound Mixer |
| Sound | Lionel Strutt | ADR Mixer |
| Camera | Ron Mazzola | Grip |
| Camera | James McGrath | Key Grip |
| Editing | Robert Barrere | Assistant Editor |
| Art | Kert Lundell | Art Direction |
| Directing | Stephen Wertimer | Assistant Director Trainee |
| Costume & Make-Up | Peggy Farrell | Costume Design |
| Costume & Make-Up | Mickey Scott | Makeup Artist |
| Art | Jim Fredericks | Props |
| Lighting | Sal Martorano | Electrician |
| Production | Riccardo Bertoni | Extras Casting |
| Editing | Wendy Wank | Assistant Editor |
| Sound | Gary Parker | Sound Recordist |
| Crew | Tom O'Brien | Transportation Captain |
| Production | Amy Sayres | Location Manager |
| Directing | Pat Depew | Script Supervisor |
| Production | Elizabeth Gazzara | Production Assistant |
| Editing | William C. Carruth | Editor |
| Editing | Scott Vickrey | Editor |
| Camera | Robby Müller | Director of Photography |
