I'm Going to Tell You a Secret is a 2005 American documentary film that follows singer Madonna on her 2004 Re-Invention World Tour. Directed by Jonas Åkerlund, the film premiered on MTV on October 21, 2005, and was released on DVD on June 20, 2006, by Warner Bros. Records. The documentary was originally called The Re-Invented Process, referencing the tour and the Steven Klein exhibition titled X-STaTIC Pro=CeSS. It starts with imagery from the exhibition and Madonna auditioning dancers for the tour, continues with her entourage travelling through different cities and performing, the singer's introspection on her life, her marriage, her religion, and her children, and ends with Madonna's visit to Israel in the midst of protests.

The Re-Invention World Tour was the sixth concert tour by American singer-songwriter Madonna, in support of her ninth studio album American Life (2003). The tour began on May 24, 2004, at The Forum in Inglewood, United States, and ended on September 14 at the Pavilhão Atlântico in Lisbon, Portugal. Additionally, it marked Madonna's first concerts in Portugal and Ireland. Rumors of a concert tour first began circulating on October 2003, but nothing was confirmed until March 2004. According to some, the title Re-Invention was a dig at Madonna's critics who, throughout her career, had talked about her "reinventing herself"; the singer said she chose this name because she wanted to "re-invent" her old material. A number of songs were rehearsed for the tour, with twenty-four making the final setlist. Like past Madonna tours, Re-Invention was divided into different thematic acts: Marie Antoinette, Military, Circus, Acoustic, and Scottish-Tribal; the wardrobe was created by designers Arianne Phillips, Stella McCartney, Christian Lacroix, and Karl Lagerfeld.