Box Office Success of Slumdog Millionaire

North America - After debuting on a Wednesday, the film grossed $360,018 in 10 theatres in its first weekend, a strong average of $36,002 per theatre. In its second weekend, it expanded to 32 theatres and made $947,795, or an average of $29,619 per theatre, representing a drop of only 18%. In the 10 original theatres that it was released in, viewership went up 16%, and this is attributed to strong word-of-mouth. The film expanded into wide release on 25 December 2008 at 614 theatres and earned $5,647,007 over the extended Christmas weekend. Following its success at the 81st Academy Awards, the film's takings increased by 43%, the most for any film since Titanic.

Europe - The film was released in the United Kingdom on 9 January 2009, and opened at #2 at the UK box office. The film reached #1 in its second weekend and set a UK box office record, as the film's takings increased by 47%. This is the "biggest ever increase for a UK saturation release," breaking "the record previously held by Billy Elliot's 13%." This record-breaking "ticket surge" in the second weekend came after Slumdog Millionaire won four Golden Globes and receive eleven BAFTA nominations. The film grossed £6.1 million in its first eleven days of release in the UK.