Question: What company made a film produced by Karen Michele Dufilho-Rosen and directed by Jan Pinkava that won an Oscar?
Context: The Emperor and the Golem (Czech: "Císařův pekař a pekařův císař" - "Emperor's baker and baker's emperor" literally) is a two-part Czechoslovakian historical fantasy comedy film produced in 1951.  The film shares parts of the plot with the 1936 French film, Le Golem, directed by Julien Duvivier, filmed in Prague and co-written by Jan Werich (this film's star and co-author) and Jiří Voskovec.  It was originally directed by Jiří Krejčík, but after disputes with the leading actor Jan Werich, Krejčík was replaced by Martin Frič.  In addition to the two-part version, a 112-minute-long one-part international version was prepared, with most propaganda flavoured scenes cut out (e.g., songs).  The film was filmed in color (not common for Czechoslovak films in that period) because of the international release. Band and Battalion of the U.S. Indian School is silent film documentary made on April 30, 1901 by American Mutoscope and Biograph Company made in Carlisle, Pennsylvania, USA.  The cinematographer was Arthur Marvin.  It depicts a parade drill by the cadet corps of the American Indian School which includes many representatives of the Native American tribes in the United States.  The head of the parade was the renowned Carlisle Band  of the Carlisle Indian Industrial School.  In 1902 Marvin produced another documentary, "Club Swinging at Carlisle Indian School" for AM&B. "Ratatouille" is a computer-animated film produced by Pixar and distributed by Walt Disney Pictures.  The film was released on June 29, 2007 in the United States as the eighth film produced by Pixar.  It was directed by Brad Bird, who took over from Jan Pinkava in 2005.  The plot follows Remy, a rat who dreams of becoming a chef and tries to achieve his goal by forming an alliance with a Parisian restaurant's garbage boy.  "Ratatouille" was released to both critical acclaim and box office success, opening in 3,940 theaters domestically and debuting at #1 with $47 million, grossing $206,445,654 in North America and a total of $624,445,654 worldwide.  The film is on the 2007 top ten lists of multiple critics, including Michael Sragow of "The Baltimore Sun" as number one, A.O. Scott of "The New York Times", Carina Chocano of the "Los Angeles Times" and Joe Morgenstern of "The Wall Street Journal" as number two. The Shadow King is an upcoming stop motion 3D dark fantasy thriller film written and directed by Henry Selick.  Initially, The Walt Disney Company made plans to release the project, but eventually dropped out after spending a reported $50 million on it, leaving Selick to proceed without Disney, but with a plot and voice cast. Karen Michele Dufilho-Rosen (born October 30, 1968) is a producer for Pixar Shorts.  She graduated from Scarborough High School in Houston, Texas, United States in 1987.  and produced Jan Pinkava's "Geri's Game" and Ralph Eggleston's "For the Birds", which both won Oscars for Best Animated Short Film. Ratatouille ( ; ] ) is a 2007 American computer-animated comedy film produced by Pixar and released by Buena Vista Pictures Distribution.  It is the eighth film produced by Pixar and was co-written and directed by Brad Bird, who took over from Jan Pinkava in 2005.  The title refers to a French dish, "ratatouille", which is served at the end of the film and is also a play on words about the species of the main character.  The film stars the voices of Patton Oswalt as Remy, an anthropomorphic rat who is interested in cooking; Lou Romano as Linguini, a young garbage boy who befriends Remy; Ian Holm as Skinner, the head chef of Auguste Gusteau's restaurant; Janeane Garofalo as Colette, a rôtisseur at Gusteau's restaurant; Peter O'Toole as Anton Ego, a restaurant critic; Brian Dennehy as Django, Remy's father and leader of his clan; Peter Sohn as Emile, Remy's older brother; and Brad Garrett as Auguste Gusteau, a recently deceased chef.  The plot follows Remy, who dreams of becoming a chef and tries to achieve his goal by forming an alliance with a Parisian restaurant's garbage boy. The Silver King is a 1929 British silent drama film directed by T. Hayes Hunter and starring Percy Marmont, Harold Huth and Chili Bouchier.  The film is an adaptation of the 1882 play "The Silver King" by Henry Arthur Jones.  It was made at Cricklewood Studios and Lime Grove Studios.  The film was an ambitious production by the Welsh-Pearson company made at an estimated cost of around £60,000.  However the company's decision to shoot it and other films that year as silents led to large financial losses due to the emergence of sound. Monsters University is a 2013 American 3D computer-animated comedy film produced by Pixar Animation Studios for Walt Disney Pictures.  It was directed by Dan Scanlon and produced by Kori Rae, with John Lasseter, Pete Docter, Andrew Stanton and Lee Unkrich as executive producers.  The music for the film was composed by Randy Newman, marking his seventh collaboration with Pixar.  It was the fourteenth feature film produced by Pixar, and is a prequel to 2001's "Monsters, Inc.", marking the first time Pixar has made a prequel film.  "Monsters University" tells the story of two monsters, Mike and Sulley, and their time studying at college, where they start off as rivals, but slowly become best friends.  John Goodman, Billy Crystal, Steve Buscemi, Bob Peterson, and John Ratzenberger reprise their roles as James P. Sullivan, Mike Wazowski, Randall Boggs, Roz, and the Abominable Snowman, respectively.  Bonnie Hunt, who played Ms. Flint in the first film, voices Mike's grade school teacher Ms. Karen Graves. Captain Jack is a 1999 direct-to-video British comedy film produced by John Goldschmidt and written by Jack Rosenthal.  The cast includes Bob Hoskins, Sadie Frost, Gemma Jones, Anna Massey, Peter McDonald, Maureen Lipman and Michele Dotrice.  The film was produced by Goldschmidt's own company Viva Films Ltd. and was distributed on video by Koch Vision. 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.
Answer: Pixar