Van Diesel, Matt Damon, Edward Norton and Guy Pierce all wanted to play bullseye.
The authors of the "Dareful" series of comics have guest roles in the film. Stan Lee played the old man Murdoch met on the street, Kevin Smith played the experimenter, and Frank Miller played the head in. Man with pen.
The film was originally scheduled to be shot in Montreal, but due to a strike, the producers had to shoot in Los Angeles.
While filming an action scene, Jennifer Garner accidentally kicked Ben Affleck in the head and caused Affleck to faint briefly.
The fight scene between Murdoch and Erica in the stadium took 4 days to complete the filming.
The producers had considered playing Erica by Jolina Bralock.
Jennifer Garner wore green contact lenses in the film.
Neve Campbell was the first candidate to play Erica.
In 2003, of all the films with a box office of more than US$40 million in their first week of release, the film had the lowest shooting cost.
The mouse in the title is completely computer-generated.
Ben Affleck originally planned to play the bullseye.
Colin Farrell used his Irish accent for the first time in an American movie.
Cooper Gooding Jr. had hoped to play the brave man.
The film’s original budget was US$50 million, but during the filming period, "Spider-Man" was a huge success. 20th Century Fox immediately increased its budget. Eventually, the film’s shooting cost increased to US$78 million.
Mike Clark Duncan gains 40 pounds to play the role of Taibao on the Black Street.
