Problem: Background: Eugene Louis Vidal was born in the cadet hospital of the U.S. Military Academy at West Point, New York, the only child of Eugene Luther Vidal (1895-1969) and Nina S. Gore (1903-1978). Vidal was born at the West Point cadet hospital because his first lieutenant father was the first aeronautics instructor of the military academy. The middle name, Louis, was a mistake on the part of his father, "who could not remember, for certain, whether his own name was Eugene Louis or Eugene Luther". In the memoir Palimpsest (1995), Vidal said, "My birth certificate says 'Eugene Louis Vidal': this was changed to Eugene Luther Vidal Jr.; then Gore was added at my christening [in 1939]; then, at fourteen, I got rid of the first two names."
Context: In the multi-volume memoir The Diary of Anais Nin (1931-74), Anais Nin said she had a love affair with Vidal, who denied her claim in his memoir Palimpsest (1995). Vidal also said that he had an intermittent romance with the actress Diana Lynn, and alluded to possibly having fathered a daughter. Yet, regarding Nin, in the online article "Gore Vidal's Secret, Unpublished Love Letter to Anais Nin" (2013), author Kim Krizan said she found an unpublished love letter from Vidal to Nin, which contradicts his denial of a love affair with Nin. Krizan said she found the love letter while researching Mirages, the latest volume of Nin's uncensored diary, to which Krizan wrote the foreword. Moreover, he was briefly engaged to the actress Joanne Woodward before she married the actor Paul Newman; after marrying, they briefly shared a house with Vidal in Los Angeles. In 1950, Gore Vidal met Howard Austen, who became his partner for the next 53 years. He said that the secret to his long relationship with Austen was that they did not have sex with each other, "It's easy to sustain a relationship when sex plays no part, and impossible, I have observed, when it does." In Celebrity: The Advocate Interviews (1995), by Judy Wiedner, Vidal said that he refused to call himself "gay" because he was not an adjective, adding "to be categorized is, simply, to be enslaved. Watch out. I have never thought of myself as a victim... . I've said - a thousand times? - in print and on TV, that everyone is bisexual". In an interview with Esquire in 1969, Gore said "Homosexuality is as natural as heterosexuality. Notice I use the word natural, not normal." Commenting his life's work and his life, he described his style as "Knowing who you are, what you want to say, and not giving a damn." In the course of his life, Vidal lived at various times in Italy and in the United States. In 2003, as his health began to fail with age, he sold his Italian villa La Rondinaia (The Swallow's Nest) on the Amalfi Coast in the province of Salerno and he and Austen returned to Los Angeles. Howard Austen died in November 2003 and in February 2005 his mortal remains were re-buried at Rock Creek Cemetery, in Washington, D.C., in a joint grave plot that Vidal had purchased for himself and Austen.
Question: Who was Anais Nin?
Answer: regarding Nin, in the online article "Gore Vidal's Secret, Unpublished Love Letter to Anais Nin" (2013), author Kim Krizan said she found an unpublished love letter from Vidal to Nin,

Problem: Background: Hugo is a 2011 epic historical adventure drama film directed and co-produced by Martin Scorsese and adapted for the screen by John Logan. Based on Brian Selznick's book The Invention of Hugo Cabret, it is about a boy who lives alone in the Gare Montparnasse railway station in Paris in the 1930s. A co-production between Graham King's GK Films and Johnny Depp's Infinitum Nihil, the film stars Ben Kingsley, Sacha Baron Cohen, Asa Butterfield, Chloe Grace Moretz, Ray Winstone, Emily Mortimer, Jude Law, Helen McCrory, and Christopher Lee. Hugo is Scorsese's first film shot in 3D, of which the filmmaker remarked, "I found 3D to be really interesting, because the actors were more upfront emotionally.
Context: The film currently holds a 94% "Certified Fresh" rating on aggregate review site Rotten Tomatoes based on 206 reviews, with an average score of 8.3/10. The site's main consensus reads, "Hugo is an extravagant, elegant fantasy with an innocence lacking in many modern kids' movies, and one that emanates an unabashed love for the magic of cinema." Metacritic gave the film an average score of 83 out of 100, based on 41 reviews, indicating "universal acclaim". Roger Ebert of the Chicago Sun-Times gave the film four out of four stars, saying "Hugo is unlike any other film Martin Scorsese has ever made, and yet possibly the closest to his heart: a big-budget, family epic in 3-D, and in some ways, a mirror of his own life. We feel a great artist has been given command of the tools and resources he needs to make a movie about--movies." Peter Rainer of The Christian Science Monitor gave it a "B+" grade and termed it as "an odd mixture: a deeply personal impersonal movie" and concluded that "Hugo is a mixed bag but one well worth rummaging through." Christy Lemire said that it had an "abundant love of the power of film; being a hardcore cinephile (like Scorsese) might add a layer of enjoyment, but it certainly isn't a prerequisite for walking in the door" besides being "slightly repetitive and overlong". Michael Phillips of the Chicago Tribune rated it three stars and described it as "rich and stimulating even when it wanders" explaining "every locale in Scorsese's vision of 1931 Paris looks and feels like another planet. The filmmaker embraces storybook artifice as wholeheartedly as he relays the tale's lessons in the importance of film preservation." Joe Morgenstern of The Wall Street Journal said that "visually Hugo is a marvel, but dramatically it's a clockwork lemon". Hugo was selected for the Royal Film Performance 2011 with a screening at the Odeon, Leicester Square, in London on 28 November 2011 in the presence of the Prince of Wales and the Duchess of Cornwall in support of the Cinema and Television Benevolent Fund. Richard Corliss of Time named it one of the Top 10 Best Movies of 2011, saying, "Scorsese's love poem, rendered gorgeously in 3-D, restores both the reputation of an early pioneer and the glory of movie history--the birth of a popular art form given new life through a master's application of the coolest new techniques". James Cameron called Hugo "a masterpiece" and that the film had the best use of 3D he had seen, surpassing even his own acclaimed films.
Question: What made it so great?
Answer:
the film had the best use of 3D he had seen,