The 29th Boston Society of Film Critics Awards, honoring the best in filmmaking in 2008, were given on December 14, 2008.

Winners

• Best Film (TIE):
  • Slumdog Millionaire
  • WALL-E
  • Runner-up: Milk
• Best Actor (TIE):
  • Sean Penn – Milk
  • Mickey Rourke – The Wrestler
  • Runner-up (TIE): Richard Jenkins – The Visitor and Frank Langella – Frost/Nixon
• Best Actress:
  • Sally Hawkins – Happy-Go-Lucky
  • Runner-up: Anne Hathaway – Rachel Getting Married
• Best Supporting Actor:
  • Heath Ledger – The Dark Knight
  • Runner-up: Robert Downey Jr. – Tropic Thunder
• Best Supporting Actress:
  • Penélope Cruz – Vicky Cristina Barcelona
  • Runner-up: Viola Davis – Doubt
• Best Director:
  • Gus Van Sant – Milk and Paranoid Park
• Best Screenplay:
  • Dustin Lance Black – Milk
  • Runner-up: Mike Leigh – Happy-Go-Lucky
• Best Cinematography:
  • Christopher Doyle and Rain Kathy Li – Paranoid Park
  • Runner-up: Anthony Dod Mantle – Slumdog Millionaire
• Best Documentary:
  • Man on Wire
  • Runner-up: Young @ Heart
• Best Foreign-Language Film:
  • Let the Right One In (Låt den rätte komma in) • Sweden
  • Runner-up: Waltz with Bashir (Vals Im Bashir) • Israel
• Best Animated Film:
  • WALL-E
  • Runner-up: Waltz with Bashir (Vals Im Bashir)
• Best Editing:
  • Chris Dickens – Slumdog Millionaire
• Best New Filmmaker:
  • Martin McDonagh – In Bruges
• Best Ensemble Cast:
  • Tropic Thunder
  • Runner-up: The Visitor