Will is 38 maar gedraagt zich als een tiener. Hij is single, heeft geen kinderen en is nog steeds cool: hij rijdt in een snelle auto, gaat naar trendy clubs en weet welke sportschoenen je hoort te dragen. Hij heeft ook een perfecte manier gevonden om vrouwen te ontmoeten: hij gaat naar bijeenkomsten van alleenstaande ouders, waar veel vrouwen komen die een nieuwe leuke man zoeken, en doet alsof hij zelf ook een kind heeft. Via zo'n bijeenkomst ontmoet hij Marcus, de oudste twaalfjarige jongen ter wereld. Marcus is een beetje vreemd: hij luistert graag naar Joni Mitchell en Mozart, hij zorgt voor zijn moeder en hij heeft zelfs nog nooit sportschoenen gedragen. Langzaam ontstaat er een bijzondere vriendschap tussen de twee.
Nee, helaas is About a Boy nog niet beschikbaar op Netflix in Nederland.
| Directing | Chris Weitz | Director |
| Directing | Paul Weitz | Director |
| Writing | Nick Hornby | Novel |
| Writing | Peter Hedges | Screenplay |
| Writing | Chris Weitz | Screenplay |
| Writing | Paul Weitz | Screenplay |
| Production | Tim Bevan | Producer |
| Production | Robert De Niro | Producer |
| Production | Brad Epstein | Producer |
| Production | Eric Fellner | Producer |
| Production | Jane Rosenthal | Producer |
| Camera | Remi Adefarasin | Director of Photography |
| Editing | Nick Moore | Editor |
| Production | Priscilla John | Casting |
| Art | Jim Clay | Production Design |
| Sound | Badly Drawn Boy | Original Music Composer |
| Writing | Nick Hornby | Screenplay |
| Art | Bill Hargreaves | Props |
| Costume & Make-Up | Graham Johnston | Makeup Designer |
| Costume & Make-Up | Graham Johnston | Hair Designer |
| Sound | Nick Angel | Music Supervisor |
| Production | Nick Hornby | Executive Producer |
| Production | Lynn Harris | Executive Producer |
| Production | Nicky Kentish Barnes | Co-Producer |
| Production | Debra Hayward | Co-Producer |
| Production | Liza Chasin | Co-Producer |
| Production | Hardy Justice | Co-Producer |
| Production | Bernard Bellew | Production Manager |
| Directing | Christopher Newman | First Assistant Director |
| Camera | Peter Robertson | "A" Camera Operator |
| Camera | Peter Robertson | Steadicam Operator |
| Art | Rod McLean | Supervising Art Director |
| Sound | Tony Dawe | Sound Mixer |
| Production | Neil Chaplin | Production Accountant |
| Directing | Nikki Clapp | Script Supervisor |
| Crew | Graham Stumpf | Post Production Supervisor |
| Production | Ann Lynch | Production Coordinator |
| Directing | Ben Howarth | Second Assistant Director |
| Directing | Alex Oakley | Third Assistant Director |
| Camera | John Arnold | Key Grip |
| Camera | René Adefarasin | Camera Loader |
| Sound | Jaya Bishop | Boom Operator |
| Production | Tarn Harper | Post Production Accountant |
| Production | Steve Hart | Location Manager |
| Production | Lucy Williams | Unit Manager |
| Production | Laura Dickens | Casting Assistant |
| Editing | Simon Cozens | First Assistant Editor |
| Sound | Richard LeGrand Jr. | Supervising Sound Editor |
| Sound | Gary S. Gerlich | Sound Editor |
| Sound | William Hooper | Sound Editor |
| Sound | Patrick O'Sullivan | Sound Editor |
| Sound | Walter Spencer | Dialogue Editor |
| Sound | Bob McNabb | ADR Supervisor |
| Sound | Norval D. Crutcher III | ADR Editor |
| Sound | Samuel Webb | Assistant Sound Editor |
| Sound | Lee Gilmore | Apprentice Sound Editor |
| Sound | Marilyn Graf | Foley Editor |
| Sound | Charles Martin Inouye | Supervising Music Editor |
| Sound | Andy Koyama | Sound Re-Recording Mixer |
| Sound | Chris Carpenter | Sound Re-Recording Mixer |
| Costume & Make-Up | Lorna McGowan | Makeup Artist |
| Costume & Make-Up | Carmel Jackson | Makeup Artist |
| Costume & Make-Up | Guy Speranza | Assistant Costume Designer |
| Costume & Make-Up | Claire Finlay-Thompson | Costume Supervisor |
| Costume & Make-Up | Helen Mattocks | Key Set Costumer |
| Costume & Make-Up | Martin Chitty | Costume Assistant |
| Costume & Make-Up | Louise Egan | Costume Assistant |
| Art | Gary Freeman | Art Direction |
| Art | Rosie Hardwick | Assistant Art Director |
| Art | John Bush | Set Decoration |
| Art | Barry Gibbs | Property Master |
| Crew | Nick Goodall | Carpenter |
| Crew | Peter Duffy | Carpenter |
| Crew | Joseph Alley | Carpenter |
| Crew | Darryl Carter | Carpenter |
| Art | Paul Duff | Standby Carpenter |
| Art | David Williamson | Standby Carpenter |
| Art | Jeff Sullivan | Painter |
| Lighting | Jamie Mills | Electrician |
| Lighting | Dave Moss | Electrician |
| Crew | Sara Woodhatch | Actor's Assistant |
| Production | Meghan Lyvers | Producer's Assistant |
| Crew | Jill McCullough | Dialogue Coach |
| Crew | Grahame Crowther | Stunt Coordinator |
| Crew | Stacy Mann | Unit Publicist |
| Camera | Laurie Sparham | Still Photographer |
| Sound | Bill Meadows | Sound Recordist |
| Sound | Ted Swanscott | ADR Mixer |
| Sound | Colin Cooper | ADR Recordist |
| Production | Brendan Donnison | ADR Voice Casting |
| Production | Vanessa Baker | ADR Voice Casting |
| Editing | Jim Passon | Color Timer |
| Editing | Theresa Repola Mohammed | Negative Cutter |
| Sound | Bryan Pennington | Dolby Consultant |
| Sound | Stephen McLaughlin | Scoring Mixer |
| Costume & Make-Up | Joanna Johnston | Costume Design |
