Monster had its world premiere at theAFI Fest on November 16, 2003. On February 8, 2004, it premiered at the54th Berlin International Film Festival, where it competed for theGolden Bear, while Theron won theSilver Bear for Best Actress. The film was theatrically released in the United States on December 24, 2003, byNewmarket Films.[6][7]Monster received positive reviews from critics and achieved box office success, grossing $64.2 million on a $1.5 million budget.
In 1989, after moving fromMichigan toDaytona Beach, Florida, and on the verge of committing suicide,street prostituteAileen "Lee" Wuornos meets another woman named Selby Wall in agay bar. Although she is initially hostile and declares that she is not a lesbian, Aileen talks to Selby while drinking beer. Selby takes to Aileen almost immediately and invites her to spend the night with her. The two women return to the house where Selby is staying after being temporarily exiled by her religious parents following the accusation from another girl that Selby tried to kiss her. They later agree to meet at aroller skating rink, and they kiss for the first time. Aileen and Selby fall in love and agree to meet for another date the following evening.
Aileen begins prostituting the following day to make money to take Selby on the date. Towards the end of the day, she is approached by a client, Vincent Corey, who drives them to a wooded area. Aileen becomes uncomfortable by Vincent's bizarre demeanor and avowed hatred for prostitutes. As the two begin arguing, Vincent knocks Aileen unconscious. Meanwhile, Selby waits for Aileen but leaves after she does not show up. Aileen regains consciousness and finds herself tied to thesteering wheel, as Vincent brutallyrapes and beats her. Aileen manages to free her hands and shoot him to death with a gun from her purse. She disposes of his body, steals his car and decides to quit prostitution. Later that night, she visits Selby at the house and asks her to run away with her. Selby agrees after Aileen confesses her love and promises to support her. The two rent a motel and try to start a life together. Aileen decides to find qualified work, but because of her lack of education and work experience, she is rejected by potential employers. Desperate to keep her and Selby financially afloat, Aileen returns to prostitution. She kills her clients and steals their money and cars, each killed in a more brutal way than the last, as she is convinced that they are all rapists and predators. She spares one man out of pity when he admits he has never had sex with a prostitute. While driving one of the stolen cars, Selby crashes into the front yard of a house. The homeowners attempt to call the police, but Aileen manages to drive the car away and dispose of it.
Selby confronts Aileen about the owner of the car, and Aileen confesses to the murders but justifies her actions by claiming she had only been protecting herself. As money runs out, Aileen tries to find another client. She is picked up by a man who genuinely offers her shelter and assistance. Despite her hesitancy, Aileen kills him. Selby sees composite sketches of her and Aileen on the news and returns toOhio on a charter bus. Aileen is approached at thebiker bar she frequents by two men, who unbeknownst to her, are undercover police officers. Thomas, whom Aileen always referred to as the only friend she had, infers the men's intentions and offers to drive her off. Aileen declines, no longer trusting herself with the well-being of anyone dear to her. The two men eventually lure Aileen out of the bar, and she is arrested by the police. Aileen speaks to Selby one last time while in jail. Selby reveals some incriminating information over the telephone and Aileen realizes that the police are listening in. To protect Selby, Aileen admits that she committed the murders alone. During Aileen's trial, Selby testifies against her, with Aileen's loving consent. Aileen is convicted of the murders andsentenced to death. On October 9, 2002, Aileen is executed bylethal injection.
Onreview aggregatorRotten Tomatoes, the film has a rating of 82%, based on 191 reviews, with an average rating of 7.2/10. The site's critical consensus states: "Charlize Theron gives a searing, deglamorized performance as real life serial killer Aileen Wuornos inMonster, an intense, disquieting portrait of a profoundly damaged soul."[9] OnMetacritic, the film has a score of 74 out of 100, based on 40 reviews, indicating "generally favorable reviews".[10]
Monster received generally positive reviews from critics; most gave overwhelmingly high praise to Theron's performance as a mentally unstable woman – Wuornos hadantisocial personality disorder andborderline personality disorder.[11] For the role, Theron gained 30 pounds (14 kg), shaved her eyebrows, and woreprosthetic teeth.[12] Critics called her performance, and her makeup, a "transformation".[9] Film criticRoger Ebert namedMonster "the best film of the year", gave it four stars out of four, and noted that Theron's role is "one of the greatest performances in the history of the cinema":[8]
Observe the way Theron controls her eyes in the film; there is not a flicker of inattention, as she urgently communicates what she is feeling and thinking [...] Aileen's body language is frightening and fascinating. She doesn't know how to occupy her body. Watch Theron as she goes through a repertory of little arm straightenings and body adjustments and head tosses and hair touchings, as she nervously tries to shake out her nervousness and look at ease. Observe her smoking technique; she handles her cigarettes with the self-conscious bravado of a 13-year-old trying to impress a kid. And note that there is only one moment in the movie where she seems relaxed and at peace with herself.
— Roger Ebert; January 1, 2004
In 2009, Ebert named it the third-best film of the decade.[13] Ricci's performance also drew some praise, but was not without criticism. In his review for the film, Ebert praised her performance, stating "Christina Ricci finds the right note for Selby Wall – so correct some critics have mistaken it for bad acting, when in fact it is sublime acting in its portrayal of a bad actor. She plays Selby as clueless, dim, in over her head, picking up cues from moment to moment, cobbling her behavior out of notions borrowed from bad movies, old songs, and barroom romances".[8] In 2025, it was one of the films voted for the "Readers' Choice" edition ofThe New York Times' list of "The 100 Best Movies of the 21st Century," finishing at number 195.[14]
However, several people who knew Wuornos criticized the movie for portraying her as a victim and her victims as villains.[15][16]
In 2005, a reference toMonster appeared in the seriesArrested Development.Charlize Theron plays the role ofRita in the series, and in the episode ″The Ocean Walker″, a frame fromMonster appears on the screen with the clarification that this is a photo of Rita a year ago before the plastic surgery.[17][18][19]
In 2014, onSaturday Night Live, Charlize Theron made a self-reference to her role of Aileen Wuornos.[20] In the sketchPet Rescue Commercial,Kate McKinnon asked her to play a cat lady, whose image and behavior are based on Wuornos fromMonster.[20][21]
In 2018, comedianWillam released histhird album with the song "Aileen" and the music video for the song, which are dedicated to Wuornos and this film.[22][23]
In 2004,BT released an officialsoundtrack to the film.[24] Included with the release is aDVD featuring all fifteen original cues, and an additional nine cues that would not fit on the CD, as well as an interview with BT and Patty Jenkins, and remix files for "Ferris Wheel".
^Rosen, Lisa (Winter 2013)."Natural-Born Director".Directors Guild of America.Archived from the original on April 11, 2021. RetrievedMarch 9, 2021.The miniscule $1.5 million budget and straight-to-video expectations actually helped give Jenkins the confidence to handle her first feature.
^Dir.Patty Jenkins stated in an interview on November 13, 2017 with film critic Thelma Adams that press accounts of the film's budget were exaggerated, saying that the budget was $1.5 million.