Question: Where does the director of film War Dogs (1943 Film) work at?

Knowledge 1: War Dogs (1943 film)
War Dogs is 1943 American one-reel World War II animated cartoon directed by William Hanna and Joseph Barbera.Released with the film "Best Foot Forward" by Metro-Goldwyn-Mayer, its main theme is war dogs training that is shown with one yellow dim-witted dog. [SEP] Knowledge 2: Joseph Barbera
Joseph Roland Barbera (March 24, 1911 – December 18, 2006) was an American animator, director, producer, storyboard artist, and cartoon artist, whose film and television cartoon characters entertained millions of fans worldwide for much of the 20th century.He was born to Italian immigrants in New York City, where he lived, attended college and began his career through his young adult years.After working odd jobs and as a banker, Barbera joined Van Beuren Studios in 1927 and subsequently Terrytoons in 1929.In 1930, he moved to California and while working at Metro-Goldwyn-Mayer (MGM), Barbera met William Hanna.The two men began a collaboration that was at first best known for producing "Tom and Jerry".In 1950, after MGM dissolved their animation department, they co-founded Hanna-Barbera, which became the most successful television animation studio in the business, producing programs such as "The FlintstonesYogi BearScooby-DooTop CatThe SmurfsHuckleberry Hound" and "The Jetsons".In 1967, Hanna-Barbera was sold to Taft Broadcasting for $12 million, but Hanna and Barbera remained heads of the company.In 1991, the studio was sold to Turner Broadcasting System, which in turn was merged with Time Warner, owners of Warner Bros., in 1996; Hanna and Barbera stayed on as advisors.Hanna and Barbera won seven Academy Awards and eight Emmy Awards.Their cartoon shows have become cultural icons, and their cartoon characters have appeared in other media such as films, books, and toys.Hanna-Barbera's shows had a worldwide audience of over 300 million people in the 1960s and have been translated into more than 28 languages.
Knowledge 1: Joseph Barbera
Joseph Roland Barbera (March 24, 1911 – December 18, 2006) was an American animator, director, producer, storyboard artist, and cartoon artist, whose film and television cartoon characters entertained millions of fans worldwide for much of the 20th century.He was born to Italian immigrants in New York City, where he lived, attended college and began his career through his young adult years.After working odd jobs and as a banker, Barbera joined Van Beuren Studios in 1927 and subsequently Terrytoons in 1929.In 1930, he moved to California and while working at Metro-Goldwyn-Mayer (MGM), Barbera met William Hanna.The two men began a collaboration that was at first best known for producing "Tom and Jerry".In 1950, after MGM dissolved their animation department, they co-founded Hanna-Barbera, which became the most successful television animation studio in the business, producing programs such as "The FlintstonesYogi BearScooby-DooTop CatThe SmurfsHuckleberry Hound" and "The Jetsons".In 1967, Hanna-Barbera was sold to Taft Broadcasting for $12 million, but Hanna and Barbera remained heads of the company.In 1991, the studio was sold to Turner Broadcasting System, which in turn was merged with Time Warner, owners of Warner Bros., in 1996; Hanna and Barbera stayed on as advisors.Hanna and Barbera won seven Academy Awards and eight Emmy Awards.Their cartoon shows have become cultural icons, and their cartoon characters have appeared in other media such as films, books, and toys.Hanna-Barbera's shows had a worldwide audience of over 300 million people in the 1960s and have been translated into more than 28 languages. [SEP] Knowledge 2: War Dogs (1942 film)
War Dogs is a 1942 American film directed by S. Roy Luby.
Knowledge 1: War Dogs (1943 film)
War Dogs is 1943 American one-reel World War II animated cartoon directed by William Hanna and Joseph Barbera.Released with the film "Best Foot Forward" by Metro-Goldwyn-Mayer, its main theme is war dogs training that is shown with one yellow dim-witted dog. [SEP] Knowledge 2: War Dogs (1942 film)
War Dogs is a 1942 American film directed by S. Roy Luby.

Answer: Van Beuren Studios