During the shooting of this film, actors Daniel Craig and Rachel Weisz met and started an affair, in which their relationship was publicly announced months later. They later married in a discreet ceremony. When asked about the movie, Craig said, "The movie didn't turn out great. But I met my wife. Fair trade."
Director Jim Sheridan fought with Morgan Creek's head, Jim Robinson, continuously on the set over the shape of the script and the production of the movie. After Sheridan re-shot some scenes because they did not go down well with test audiences, Morgan Creek took away the film from Sheridan's hands to re-cut it themselves. As a result, they created the trailer, which many felt gave away too many of the movie's secrets. As a result, Sheridan, Daniel Craig and Rachel Weisz refused to promote the film to the press.
The trivia item below may give away important plot points.
At 43 minutes in, when Will is with the doctor, he shows him Peter Ward's hospital identification bracelets. Although Peter removed his own name, the top right reveals the name "W1-1L 8-10-10," meaning Will Atenton.