Critical response
Letters from Iwo Jima was critically acclaimed, and well noted for its portrayal of good and evil on both sides of the battle. The critics heavily praised the writing, direction, cinematography and acting. The review tallying website Rotten Tomatoes reported that 184 out of the 202 reviews they tallied were positive for a score of 91%, and an average rating of 8.20/10, and a certification of "fresh". The site's consensus states: "A powerfully humanistic portrayal of the perils of war, this companion piece to Flags of Our Fathers is potent and thought-provoking, and it demonstrates Clint Eastwood's maturity as a director." Metacritic gave the movie a score of 89 based on 37 reviews, indicating "universal acclaim". Lisa Schwarzbaum of Entertainment Weekly, Kenneth Turan of the Los Angeles Times, and Richard Schickel of Time were among many critics to name it the best picture of the year. In addition, Peter Travers of Rolling Stone and Michael Phillips of the Chicago Tribune both gave it four stars, and Todd McCarthy of Variety praised the film, assigning it a rare 'A' rating.
On December 6, 2006, the National Board of Review of Motion Pictures named Letters from Iwo Jima the best film of 2006. On December 10, 2006, the Los Angeles Film Critics Association named Letters from Iwo Jima Best Picture of 2006. Furthermore, Clint Eastwood was runner-up for directing honors. In addition, the American Film Institute named it one of the 10 best films of 2006. It was also named Best Film in a Foreign Language on January 15 during the 64th Annual Golden Globe Awards, while Clint Eastwood held a nomination for Best Director.
CNN's Tom Charity in his review described Letters from Iwo Jima as "the only American movie of the year I won't hesitate to call a masterpiece." On the "Best Films of the Year 2006" broadcast (December 31, 2006) of the television show Ebert & Roeper, Richard Roeper listed the film at #3 and guest critic A. O. Scott listed it at number one, claiming that the film was "close to perfect". James Berardinelli awarded a three out of four-star review, concluding that although both 'Letters' and 'Flags' were imperfect but interesting, 'Letters from Iwo Jima' was more focused, strong and straightforward than its companion piece.
On January 23, 2007, the film received four Academy Award nominations. Eastwood was nominated for his directing, as well as Best Picture along with producers Steven Spielberg and Robert Lorenz. It was also nominated for Best Original Screenplay. The film took home one award, Best Sound Editing.
The film appeared on many critics' top ten lists of the best films of 2006, including 157 top ten lists in North America with 25 number one spots.
The February 2020 issue of New York Magazine lists Letters from Iwo Jima as among "The Best Movies That Lost Best Picture at the Oscars."
The film was far more commercially successful in Japan than in the U.S., ranking number 1 for five weeks, and receiving a warm reception from both Japanese audiences and critics. The Japanese critics noted that Clint Eastwood presented Kuribayashi as a "caring, erudite commander of Japan's Iwo Jima garrison, along with Japanese soldiers in general, in a sensitive, respectful way." Also, the Japanese newspaper Asahi Shimbun noted that the movie is clearly "distinguishable" from previous Hollywood movies, which tended to portray Japanese characters with non-Japanese actors (e.g., Chinese-Americans, and other Asian-Americans). Consequently, incorrect Japanese grammar and non-native accents were conspicuous in those former films, jarring their realism for the Japanese audience. In contrast, most Japanese roles in Letters from Iwo Jima are played by native Japanese actors. Also, the article praised the film's new approach, as it is scripted with excellent research into Japanese society at that time. According to the article, previous Hollywood movies describing Japan were based on the stereotypical images of Japanese society, which looked "weird" to native Japanese audiences. Letters from Iwo Jima is remarkable as the movie that tries to escape from the stereotypes. Owing to the lack of stereotypes, Letters from Iwo Jima was appreciated by Japanese critics and audiences.
Since the film was successful in Japan, a tourist boom has been reported on the Ogasawara islands, of which Iwo Jima is part.
Despite favorable reviews, the film only grossed $13.7 million in the United States. Foreign sales of $54.9 million helped to boost revenue over production costs of $19 million.