A rising Boston gangster (Ben Barnes) endangers those around him when he starts to make moves without the knowledge of his boss (Harvey Keitel).
Unfortunately the movie By the Gun is not yet available on HBO Max.
| Directing | James Mottern | Director |
| Writing | Emilio Mauro | Writer |
| Production | Matthew E. Chausse | Producer |
| Sound | Nevin Seus | Music Editor |
| Sound | Nathan Whitehead | Music |
| Art | Jennifer Gerbino | Production Design |
| Costume & Make-Up | Honah Lee Milne | Costume Design |
| Crew | Paul Marini | Stunt Coordinator |
| Camera | Jimmy Lindsey | Director of Photography |
| Costume & Make-Up | Nichole Pleau | Makeup Department Head |
| Art | Michael McNulty | Art Department Coordinator |
| Directing | Betsy Kuehn | Script Supervisor |
| Lighting | Jesse Goldberg | Gaffer |
| Lighting | Brandon J. Meadows | Gaffer |
| Art | Dara Smith | Set Decoration |
| Production | Jessica Kelly | Casting |
| Sound | Yagmur Kaplan | Sound Re-Recording Mixer |
| Costume & Make-Up | Liz McCracken | Makeup Artist |
| Art | Shann Whynot-Young | Leadman |
| Editing | Banner Gwin | Editor |
| Editing | Daniel Hasenstaub | Digital Intermediate |
| Production | Eoin Walsh | Location Manager |
| Camera | Seacia Pavao | Still Photographer |
| Production | Emilio Mauro | Producer |
| Art | Kevin C. Lang | Set Decoration |
| Editing | Rain Valdez | Digital Intermediate |
| Art | Melissa Cooperman | Set Decoration Buyer |
| Production | Philippe Chausse | Executive Producer |
| Production | Colin Walsh | Line Producer |
| Production | Steffen Aumueller | Co-Executive Producer |
| Production | Ankur Rungta | Executive Producer |
| Production | Francesco Di Silvio | Executive Producer |
| Production | Jenna DePaul | Co-Producer |
| Production | Zülfikar Güzelgün | Co-Executive Producer |
| Production | Vishal Rungta | Executive Producer |
| Production | Kevin Scott Frakes | Executive Producer |
| Production | Nicholas Delmenico | Line Producer |
| Production | Raj Brinder Singh | Executive Producer |
| Costume & Make-Up | Brenda McNally | Hair Department Head |
| Sound | Josh Kupanoff | Foley Editor |
| Costume & Make-Up | Shayna Passaretti | Key Hair Stylist |
| Art | Shadya H. Ballug | Set Dresser |
| Directing | Nicholas Delmenico | Second Assistant Director |
| Crew | Peter Rippe | Carpenter |
| Art | Beth Anderson | Assistant Property Master |
| Art | Dawn Beagan | Set Dresser |
| Directing | Tim LaDue | Second Assistant Director |
| Directing | Anthony Ambrosino | First Assistant Director |
| Directing | Ramses del Hierro | First Assistant Director |
| Sound | Jason Fyrberg | Sound Mixer |
| Sound | Aaron Bouchard | Sound Mixer |
| Art | John Ryder | Set Dresser |
| Sound | Ryan Baker | Boom Operator |
| Sound | Matthew Whitehurst | Foley Editor |
| Art | Aimee Butterfield | Property Master |
| Camera | Peter Rippe | Grip |
| Camera | Paul Bulgin | Key Grip |
| Camera | Mark Killian | Second Assistant Camera |
| Lighting | Aaron Tyburski | Electrician |
| Camera | Adam E. Oliver | Digital Imaging Technician |
| Camera | Tommy Fitzgerald | Second Unit Director of Photography |
| Camera | Dan Mason | Second Assistant Camera |
| Camera | Toshadeva Palani | Camera Intern |
| Camera | Edwin Rubio | Grip |
| Costume & Make-Up | Elizabeth Clifford | Wardrobe Supervisor |
| Camera | Andrew Bell | Grip |
| Costume & Make-Up | Robin Chalfin | Tailor |
| Camera | Woody Bell | Key Grip |
| Visual Effects | Thomas Tannenberger | Visual Effects Supervisor |
| Camera | A. Kyo Moon | First Assistant Camera |
| Camera | David C. Romano | Best Boy Grip |
| Camera | Melanie Patten | Best Boy Grip |
| Lighting | Chuck Rudolph | Lighting Technician |
