Moneyball is a 2011 American biographical sports drama film directed by Bennett Miller and written by Steven Zaillian and Aaron Sorkin. The film is based on Michael Lewis's 2003 nonfiction book of the same name, an account of the Oakland Athletics baseball team's 2002 season and their general manager Billy Beane's attempts to assemble a competitive team. In the film, Beane (Brad Pitt) and assistant general manager Peter Brand (Jonah Hill), faced with the franchise's limited budget for players, build a team of undervalued talent by taking a sophisticated sabermetric approach to scouting and analyzing players. Philip Seymour Hoffman also stars as Art Howe.

Columbia Pictures bought the rights to Lewis's book in 2004, hiring Chervin to write the screenplay. David Frankel was initially set to direct with Zaillian now writing the screenplay, but was soon replaced by Steven Soderbergh, who planned to make the film in a semi-documentary style featuring interviews from real athletes, and having the real players and coaches on the team portray themselves. But before its July 2009 filming start, the film was put in turnaround due to creative differences between Soderbergh and Sony over a last-minute script rewrite. Soderbergh exited, and Miller was hired to direct, with Pitt becoming a producer and Sorkin hired for rewrites. Filming began in July 2010 at various stadiums such as Dodger Stadium and Oakland Coliseum.

Moneyball premiered at the 2011 Toronto International Film Festival and was released on September 23, 2011, to box office success and critical acclaim, particularly for its acting and screenplay. The film was nominated for six Academy Awards, including Best Picture, Best Adapted Screenplay, Best Actor for Pitt and Best Supporting Actor for Hill.

Billy Beane, the general manager of the Oakland Athletics, is devastated by the team's loss to the New York Yankees in the 2001 American League Division Series. With the impending departure of star players Johnny Damon, Jason Giambi, and Jason Isringhausen to free agency, Beane needs to assemble a competitive team for 2002 with Oakland's limited budget of 41 million dollars.

During a scouting visit to the Cleveland Indians, Beane meets Peter Brand, a young Yale economics graduate with radical ideas about evaluating players. Beane asks whether Brand would have drafted him out of high school; though scouts considered Beane promising, his career in the major leagues was disappointing. Brand says he would not have drafted him until the ninth round and intuits that Beane would've thereby turned down the Mets' offer and gone to Stanford on a full sports scholarship instead. Impressed, Beane hires him.

Using Brand's sabermetric method, Beane signs undervalued players such as Chad Bradford, Jeremy Giambi, and Scott Hatteberg, and also trades for David Justice. The Athletics' scouts are hostile toward the strategy, and Beane fires the head scout, Grady Fuson, after a heated confrontation. Beane also faces opposition from Art Howe, the Athletics' manager, who is in the final year of his contract and has been asking for an extension. Howe disregards Beane's and Brand's strategy and uses a more traditional lineup.

Early in the season, the Athletics are already 10 games behind first, leading critics to dismiss the new method as a failure. Brand argues that their sample size is too small to conclude that the method does not work, and Beane convinces the team owner, Stephen Schott, to stay the course. To get help on defense, Beane trades Giambi to the Phillies for John Mabry and the only traditional first baseman, Carlos Peña, to the Tigers, leaving Howe no choice but to use the team that Beane and Brand have designed. Three weeks later, the Athletics are only four games behind first.

Before the trade deadline, Beane acquires the relief pitcher Ricardo Rincón from the Indians, and on August 13, the Athletics start a winning streak. Beane, superstitiously, refuses to watch games in progress, but when the Athletics tie the American League record of 19 consecutive wins, his daughter persuades him to attend the next game against the Kansas City Royals. Oakland is leading 11–0 when Beane arrives in the fourth inning, only to watch the Royals even the score by the top of the ninth. Thanks to a walk-off home run by Hatteberg, the Athletics achieve a then record-breaking 20th consecutive win. Beane tells Brand he will not be satisfied until they have changed baseball by winning the World Series.

The Athletics win the American League West but lose to the Minnesota Twins in the American League Division Series, with an unseen baseball analyst explaining that some other tangibles of a player, such as drive and clutch performance, cannot be measured. The owner of the Boston Red Sox, John W. Henry, realizes that sabermetrics is the future of baseball. He makes Beane an offer to become the Red Sox general manager for a $12.5 million salary, which would make him the highest-paid general manager in sports history. In Oakland, Beane discloses the offer to Brand and says that their strategy failed. Brand shows a video of a heavyset batter, Jeremy Brown, who hits a home run but does not realize it; Beane understands what Brand is trying to say and thanks him. In his car, an emotional Beane listens to a cover of "The Show" recorded by his daughter in which she tells him to "just enjoy the show."

In an epilogue, Beane turns down Henry's offer, but the Red Sox still end up winning the World Series two years later using Beane and Brand's model.

• Brad Pitt as Billy Beane
• Jonah Hill as Peter Brand, partially based on Paul DePodesta
• Philip Seymour Hoffman as Art Howe
• Robin Wright as Sharon Beane
• Chris Pratt as Scott Hatteberg
• Stephen Bishop as David Justice
• Reed Diamond as Mark Shapiro
• Brent Jennings as Ron Washington
• Ken Medlock as Grady Fuson
• Jack McGee as Rocco
• Vyto Ruginis as Chris Pittaro
• Nick Searcy as Matt Keough
• Glenn Morshower as Ron Hopkins
• Casey Bond as Chad Bradford
• Nick Porrazzo as Jeremy Giambi
• Kerris Dorsey as Casey Beane
• Arliss Howard as John W. Henry
• Derrin Ebert as Mike Magnante
• Miguel Mendoza as Ricardo Rincón
• Adrian Bellani as Carlos Peña
• Art Ortiz as Eric Chavez
• Royce Clayton as Miguel Tejada

Film director Spike Jonze has a small uncredited role as Alán, Sharon's spouse. Activision Blizzard CEO Bobby Kotick appears as Athletics co-owner Stephen Schott.