Lemony Snicket's A Series of Unfortunate Events (also simply known as A Series of Unfortunate Events) is a 2004 American black comedy adventure film directed by Brad Silberling from a screenplay by Robert Gordon, based on the first three novels of the book series A Series of Unfortunate Events: The Bad Beginning (1999), The Reptile Room (1999), and The Wide Window (2000), by Lemony Snicket (the pen name of American author Daniel Handler). It stars Jim Carrey, Liam Aiken, Emily Browning, Timothy Spall, Catherine O'Hara, Billy Connolly, Cedric the Entertainer, Luis Guzmán, Jennifer Coolidge, and Meryl Streep, and Jude Law as the voice of Lemony Snicket.

Nickelodeon Movies purchased the film rights to Handler's book series in 2000 and soon began development of a film with Barry Sonnenfeld attached to direct. Handler adapted the screenplay and courted Carrey for Count Olaf. Sonnenfeld left over budget concerns in January 2003 and Brad Silberling took over. Robert Gordon rewrote Handler's script, and principal photography started in November 2003. The film was entirely shot using sound stages and backlots at Paramount Pictures and Downey Studios.

Lemony Snicket's A Series of Unfortunate Events was released theatrically in the United States on December 17, 2004, by Paramount Pictures with DreamWorks Pictures distributing the movie internationally. It received positive reviews from critics, with many praising its production values, Newman's score and performances (particularly Carrey's performance), while some criticized its comical tone and short length. The film grossed $211 million worldwide. At the 77th Academy Awards, it won the Academy Award for Best Makeup (the second to involve Carrey, after How the Grinch Stole Christmas in 2000) and received nominations for Best Art Direction, Best Costume Design, and Best Original Score.