Critical response
On Rotten Tomatoes, the film holds an approval rating of 63% based on 202 reviews, with an average rating of 6.4/10. The site's consensus states, "Despite Kate Winslet's superb portrayal, The Reader suggests an emotionally distant, Oscar-baiting historical drama." At Metacritic the film was assigned a weighted average score of 58 out of 100, based on 38 critics, indicating "average or mixed reviews".
Ann Hornaday of The Washington Post wrote, "This engrossing, graceful adaptation of Bernhard Schlink's semi-autobiographical novel has been adapted by screenwriter David Hare and director Stephen Daldry with equal parts simplicity and nuance, restraint and emotion. At the center of a skein of vexing ethical questions, Winslet delivers a tough, bravura performance as a woman whose past coincides with Germany's most cataclysmic and hauntingly unresolved era."
Manohla Dargis of The New York Times wrote, "You have to wonder who, exactly, wants or perhaps needs to see another movie about the Holocaust that embalms its horrors with artfully spilled tears and asks us to pity a death-camp guard. You could argue that the film isn't really about the Holocaust, but about the generation that grew up in its shadow, which is what the book insists. But the film is neither about the Holocaust nor about those Germans who grappled with its legacy: it's about making the audience feel good about a historical catastrophe that grows fainter with each new tasteful interpolation."
Patrick Goldstein wrote in the Los Angeles Times, "The picture's biggest problem is that it simply doesn't capture the chilling intensity of its source material," and noted there was a "largely lackluster early reaction" to the film by most film critics. Most felt that while the novel portrayed Hanna's illiteracy as a metaphor for generational illiteracy about the Holocaust, the film failed to convey those thematic overtones.
Ron Rosenbaum was critical of the film's fixation on Hanna's illiteracy, saying, "so much is made of the deep, deep exculpatory shame of illiteracy – despite the fact that burning 300 people to death doesn't require reading skills – that some worshipful accounts of the novel (by those who buy into its ludicrous premise, perhaps because it's been declared "classic" and "profound") actually seem to affirm that illiteracy is something more to be ashamed of than participating in mass murder ... Lack of reading skills is more disgraceful than listening in bovine silence to the screams of 300 people as they are burned to death behind the locked doors of a church you're guarding to prevent them from escaping the flames. Which is what Hanna did, although, of course, it's not shown in the film."
Kirk Honeycutt's review in The Hollywood Reporter was more generous, concluding the picture was a "well-told coming-of-age yarn" but "disturbing" for raising critical questions about complicity in the Holocaust. He praised Winslet and Kross for providing "gutsy, intense performances", noted that Olin and Ganz turn in "memorable appearances", and noted that the cinematographers, Chris Menges and Roger Deakins, lent the film a "fine professional polish". Colm Andrew of the Manx Independent also rated the film highly and observed it had "countless opportunities to become overly sentimental or dramatic and resists every one of them, resulting in a film which by its conclusion, has you not knowing which quality to praise the most".
At The Huffington Post, Thelma Adams found the relationship between Hanna and Michael, which she termed abusive, more disturbing than any of the historical questions in the movie: "Michael is a victim of abuse, and his abuser just happened to have been a luscious retired Auschwitz guard. You can call their tryst and its consequences a metaphor of two generations of Germans passing guilt from one to the next, but that doesn't explain why filmmakers Daldry and Hare luxuriated in the sex scenes – and why it's so tastefully done audiences won't see it for the child pornography it is."
When asked to respond, Hare called it "the most ridiculous thing ... We went to great lengths to make sure that that's exactly what it didn't turn into. The book is much more erotic." Daldry added, "He's a young man who falls in love with an older woman who is complicated, difficult and controlling. That's the story."
The film appeared on several critics' top ten lists of the best films of 2008. Rex Reed of The New York Observer named it the second best film of 2008. Stephen Farber of The Hollywood Reporter named it the fourth best film of 2008, Tasha Robinson of The A.V. Club named it the eighth best film of 2008, and Roger Ebert of the Chicago Sun-Times placed it on his unranked top 20 list.
Special praise went to Winslet's acting. She then swept the main prizes in the 2008/2009 award season, including the Golden Globe, the Critic's Choice Award, and the Screen Actor's Guild Award for Best Supporting Actress, and the BAFTA and the Academy Award for Best Actress.
Several writers noted that her success seemed to have made real her appearance in the BBC comedy Extras, in which she played a fictionalized version of herself desperate to win an Academy Award. In the episode, Winslet decided to increase her chance of winning an Oscar by starring in a film about the Holocaust, noting that such films were often awarded Oscars. However, in the fictional film, Winslet played a nun sheltering children from the Holocaust rather than one of its perpetrators. Winslet commented that the similarity "would be funny", but the connection didn't occur to her until "midway through shooting the film ... this was never a Holocaust movie to me. That's part of the story and provides something of a backdrop, and sets the scene. But to me it was always an extraordinarily unconventional love story."
Some historians criticised the film for making Schmitz an object of the audience's sympathy and accused the filmmakers of Holocaust revisionism.