"Fighter" premiered in its first week in 1,209 theaters across North America and earned 15.37 million US dollars in box office revenue, ranking sixth in weekly box office performance.
The box office champion was "Twilight 2," which premiered in the same period and earned 140 million US dollars in North America in its first three days, making it the third highest in history for opening week box office revenue, following "The Dark Knight" with 158 million and "Spider-Man 3" with 151 million.
The second to fifth ranks were occupied by "Weakness," "Up," "2012," and Disney's hand-drawn animation "The Princess and the Frog."
Compared to the first five films that had investments exceeding 50 million, "Fighter," with a production cost of only 18 million US dollars, managed to earn over fifteen million in its first week, which fully demonstrates the quality of this film.