The 21st Chicago Film Critics Association Awards, given by the CFCA on December 18, 2008, honored the best in film for 2008. Disney/Pixar's WALL-E was the most successful film in the ceremony, winning four awards, including Best Film, out of five nominations. Slumdog Millionaire won three awards, while The Dark Knight and Let the Right One In won two awards each.

Let the Right One In is a 2008 Swedish romantic horror film directed by Tomas Alfredson, based on the 2004 novel of the same title by John Ajvide Lindqvist, who also wrote the screenplay. The film tells the story of a bullied 12-year-old boy who develops a friendship with a strange child in Blackeberg, a suburb of Stockholm, in the early 1980s.