Batman Begins is a 2005 superhero film directed by Sir Christopher Nolan and written by Nolan and David S. Goyer. Based on the DC Comics character Batman, it stars Christian Bale as Bruce Wayne / Batman, with Michael Caine, Liam Neeson, Katie Holmes, Gary Oldman, Cillian Murphy, Tom Wilkinson, Rutger Hauer, Ken Watanabe, and Morgan Freeman in supporting roles. The film reboots the Batman film series, telling the origin story of Bruce Wayne from the death of his parents to his journey to become Batman and his fight to stop Ra's al Ghul (Neeson) and the Scarecrow (Murphy) from plunging Gotham City into chaos.

After Batman & Robin was panned by critics and underperformed at the box office, Warner Bros. Pictures cancelled future Batman films, including Joel Schumacher's planned Batman Unchained. Between 1998 and 2003, several filmmakers collaborated with Warner Bros. in attempting to reboot the franchise. After the studio rejected a Batman origin story reboot Joss Whedon pitched in December 2002, Warner Bros. hired Nolan in January 2003 to direct a new film. Nolan and Goyer began development on the film in early 2003. Aiming for a darker, more realistic tone compared to the previous films, a primary goal for their vision was to engage the audience's emotional investment in both the Batman and Bruce Wayne identities of the lead character. The film, which was principally shot in the United Kingdom, Iceland and Chicago, relied heavily on traditional stunts and miniature effects, with computer-generated imagery being used in a minimal capacity compared to other action films. Comic book storylines such as The Man Who Falls, Batman: Year One, and Batman: The Long Halloween served as inspiration.

Expectations for Batman Begins ranged from moderate to low, which originated from the poor reception of Batman & Robin that was credited with stalling the Batman film series in 1997. After premiering in Tokyo on May 31, 2005, the film was released on June 15, 2005. It received positive reviews from critics, who deemed the film an improvement over the Schumacher films. The film grossed over $371.9 million worldwide, becoming the ninth-highest-grossing film of 2005 and was the second highest grossing Batman film at the time behind Tim Burton's Batman (1989). Receiving a nomination for the Academy Award for Best Cinematography, the film elevated Bale to leading man status while it made Nolan a high-profile director.

Since its release, Batman Begins has often been cited as one of the most influential films of the 2000s. It was credited for revitalizing the Batman character in popular culture, shifting its tone towards a darker and more serious tone and style. The film helped popularise the term reboot in Hollywood, inspiring studios and filmmakers to revive franchises with realistic and serious tones. It was followed by The Dark Knight (2008) and The Dark Knight Rises (2012), with the three films constituting The Dark Knight Trilogy.