Wanneer zijn ouders gaan ballroom dansen verblijft Ben (Buttery) altijd bij zijn grootmoeder (McKenzie). Hij vindt haar maar suf. Totdat hij ontdekt dat ze ooit een legendarische juwelendief was. Zou het geen leuk idee zijn om samen de kroonjuwelen uit de Tower of London te stelen?
Nee, helaas is Gangsta Granny nog niet beschikbaar op Netflix in Nederland.
| Writing | David Walliams | Novel |
| Directing | Matt Lipsey | Director |
| Writing | Andy Riley | Adaptation |
| Art | Samantha Jay Cliff | Art Direction |
| Directing | Christian Rigg | Second Assistant Director |
| Camera | Jon Howard | Focus Puller |
| Writing | Kevin Cecil | Adaptation |
| Visual Effects | Jenny Anderson | Visual Effects Supervisor |
| Sound | Michael Price | Original Music Composer |
| Directing | Timothy Wood | Third Assistant Director |
| Lighting | Suzanne Sanders | Rigging Gaffer |
| Production | Katie Neal | Production Coordinator |
| Production | Jo Sargent | Producer |
| Directing | Jim Imber | First Assistant Director |
| Editing | Gary Scullion | Assistant Editor |
| Camera | Tim Palmer | Director of Photography |
| Art | Arwel Jones | Production Design |
| Costume & Make-Up | Annabelle McMahon | Makeup & Hair |
| Production | Saskia Whinney | Location Manager |
| Production | John Cannon | Casting |
| Costume & Make-Up | Helen Conroy | Makeup Artist |
| Costume & Make-Up | Roxana Habibi | Makeup Artist |
| Costume & Make-Up | Lisa Cavalli-Green | Hair Designer |
| Camera | Gary Moyes | Still Photographer |
| Editing | Joe Randall-Cutler | Editor |
| Costume & Make-Up | Lisa Cavalli-Green | Makeup Designer |
| Camera | James Leckey | First Assistant Camera |
| Editing | Alexander Leask | Colorist |
| Production | Nikki Chamberlin | Production Accountant |
| Production | Sue Longstaff | Associate Producer |
| Sound | David Arnold | Original Music Composer |
| Production | Saskia Whinney | Unit Manager |
| Visual Effects | Barney Curnow | Visual Effects Supervisor |
| Production | Julia Crampsie | Casting |
| Costume & Make-Up | Annie Hardinge | Costume Design |
| Camera | Barney Piercy | Second Assistant Camera |
| Crew | Jo Wellings | Choreographer |
| Camera | Darren Johnson | Clapper Loader |
| Directing | Karen Savage | Script Supervisor |
| Production | Mark Freeland | Executive Producer |
| Camera | Danny Crocker | Focus Puller |
| Lighting | Ian Glenister | Gaffer |
| Camera | Claire Pie | Clapper Loader |
| Costume & Make-Up | Debbie Roberts | Assistant Costume Designer |
| Crew | Ray De-Haan | Stunt Coordinator |
