Box office
On its opening day, Halloween grossed $10,896,610, and immediately surpassed the opening weekend grosses for Halloween II (1981) at $7,446,508, Season of the Witch at $6,333,259, The Return of Michael Myers (1988) at $6,831,250, The Revenge of Michael Myers (1989) at $5,093,428, and The Curse of Michael Myers at $7,308,529. From September 1–2, Halloween earned $8,554,661 and $6,911,096, respectively, for a 3-day opening weekend total of $26,362,367. The film would earn an additional $4,229,392 on Labor Day for a 4-day holiday weekend gross of $30,591,759, making it the highest ever for that holiday. As a result, the 2007 film would immediately surpass the total box office gross for Halloween II (1981) at $25,533,818, Halloween III (1982) at $14,400,000, Halloween 4 (1988) at $17,768,757, Halloween 5 (1989) at $11,642,254, The Curse of Michael Myers (1995) at $15,116,634, and Halloween: Resurrection with $30,354,442.
Following its first Friday after its opening weekend, Halloween saw a 71.6% drop in attendance, earning $3,093,679. The film, which earned the #1 spot at the box office in its opening weekend, earned only $9,513,770 in its second weekend—a 63.9% decrease—but still claimed the #2 spot at the box office just behind 3:10 to Yuma. The film continued to appear in the weekend top ten going into its third weekend, when it earned $4,867,522 to take sixth place. It was not until the film's fourth weekend that it fell out of the top ten and into twelfth place with $2,189,266. Halloween would fail to regain a top ten spot at the box office for the remainder of its theatrical run.
Thanks to its opening weekend of $30.5 million, the film broke the box-office record for the Labor Day weekend, surpassing the record set in 2005 by Transporter 2 with $20.1 million. It remained the top Labor Day weekend grosser until the release of Shang-Chi and the Legend of the Ten Rings in 2021. Halloween was also the 8th highest-grossing R-rated film of 2007, and finished out the year in 44th place for domestic box office gross. With its $58 million box office gross, Halloween was the second highest-grossing film among the recent slasher remakes, taken over by A Nightmare on Elm Street (2010) with $63 million. However, it is third in the list which consists of When a Stranger Calls (2006) at $47.8 million, Black Christmas (2006) at $16.3 million, Prom Night (2008) at $43.8 million, My Bloody Valentine 3D (2009) with $51.4 million, and Friday the 13th (2009) leading the group with $60 million. Halloween is also ranked eleventh overall when comparing it to all of the horror remakes, as well as eighth place for all slasher films in general, in unadjusted dollars.
In addition to the film's North American box office, it opened alongside Michael Clayton and Mr. Woodcock in foreign markets on the weekend of September 29, 2007. Halloween led the trio with a total of $1.3 million in 372 theaters – Michael Clayton and Mr. Woodcock took in $1.2 million from 295 screens and $1 million from 238 screens, respectively. By November 1, 2007, Halloween had taken in an additional $7 million in foreign markets. Ultimately, the film would earn approximately $21,981,879 overseas. By the end of the film's theatrical run, the film had taken a worldwide total of $80,253,908. When adjusting for the 2018 inflation, Zombie's Halloween—which adjusts to $77.4 million domestically—is sixth, behind Carpenter's Halloween at $183.6 million, Halloween (2018) at $155.7 million, Halloween H20: 20 Years Later at $107.3 million, and Halloween II at $84 million.