Question: Jack-Jack Attack is a 2005 computer animated short film produced by Pixar based on a film released in what year?

Context paragraphs:
Surprise (1991 film): Surprise is a Pixar computer animated short created in 1991 by Pixar Animation Studios for "Sesame Street".  It starred Luxo Jr. from a previous Pixar short film.  The film's length in total is no more than 20 seconds, making this one of Pixar's shortest animated films.The soundtrack in "Surprise" is the same as that used in "Luxo Jr."

The Incredibles: The Incredibles is a 2004 American computer-animated superhero film written and directed by Brad Bird, produced by Pixar Animation Studios, and released by Walt Disney Pictures.  The film follows a family of superheroes who are forced to hide their powers and live a quiet suburban life.  Mr. Incredible's desire to help people draws the entire family into a battle with Syndrome, a former fan who now plots to wipe out all superheroes with his killer robot.

Jack-Jack Attack: Jack-Jack Attack is a 2005 computer animated short film produced by Pixar based on their film "The Incredibles", and directed by Brad Bird.

For the Birds (film): For the Birds is a 2000 computer animated short film produced by Pixar and directed by Ralph Eggleston.  It won the Academy Award for Best Animated Short Film in 2001.  It premiered on June 5, 2000, at the Annecy International Animated Film Festival in France, and was shown alongside the theatrical release of the 2001 Disney/Pixar feature film "Monsters, Inc."

Geri's Game: Geri's Game is a 1997 computer animated short film made by Pixar, written and directed by Jan Pinkava.  Although Pixar had started out with a successful string of shorts in the 1980s, these were put on hold for most of the 1990s to focus on for-hire work, and development of the feature films "Toy Story" and "A Bug's Life"; "Geri's Game" was the first Pixar short since the 1989 short "Knick Knack".  The film won an Academy Award for Best Animated Short Film in 1998.

Tormented (2009 Salvadorean film): Tormented (Atormentada in Spanish) is a computer animated short film written and directed by Sergio Rosa.  Produced by El Salvador-based Do Studio, it was projected in select theaters as part of the Film and TV Workshop by Escuela de Comunicaciones Mónica Herrera in November 2009.  The short film is considered to be the first professional computer animated ever produced in El Salvador, and part of the emerging salvadorean film industry.

The Dam Keeper: The Dam Keeper is a 2014 American animated short film directed by former Pixar art directors Robert Kondo and Daisuke Tsutsumi.  It tells the story of Pig, an introverted youth who lives in a windmill and keeps a dark fog from engulfing his town.  Although socially rejected by his peers, he is befriended by the artistic Fox.  Kondo and Tsutsumi began developing the film while working on "Monsters University" and produced it through a Pixar co-op program.  This is Tsutsumi's second short film, after 2011's "Sketchtravel", and Kondo's first directorial effort.  Producers Megan Bartel and Duncan Ramsay were also employees at Pixar.  The film received an Academy Award nomination for Best Animated Short Film.

Mark Andrews (filmmaker): Mark Andrews is a Pixar employee, best known as a director and screenwriter of the 2012 Pixar feature film "Brave".  He was the story supervisor for "The Incredibles", directed the short film "One Man Band" and co-wrote the short films "Jack-Jack Attack" and "One Man Band".

Paperman: Paperman is a 2012 American black-and-white computer-cel animated romantic comedy short film produced by Walt Disney Animation Studios and directed by John Kahrs.  The short blends traditional animation and computer animation, and won both the Academy Award for Best Animated Short Film at the 85th Academy Awards and the Annie Award for Best Animated Short Subject at the 40th Annie Awards.  "Paperman" was the first animated short film produced by Walt Disney Animation Studios to win an Academy Award since "It's Tough to Be a Bird" in 1970.

9 (2005 film): 9 is a 2005 computer animated short film created by Shane Acker as a student project at the UCLA Animation Workshop.  Tim Burton saw the film and was so impressed by its artistic vision that he went on to produce a feature-length adaptation also titled "9", directed by Acker and distributed by Focus Features.  The film was presented at the Indianapolis International Film Festival.  It was nominated for an Academy Award for best animated short film, but lost to "", although it did win a Student Academy Award for Best Animation.

Supporting paragraphs: Jack-Jack Attack The Incredibles
Answer: 2004