Definition: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Input: Passage: In 1959, Makeba sang the lead female role in the Broadway-inspired South African jazz opera King Kong; among those in the cast was the musician Hugh Masekela. The musical was performed to racially integrated audiences, raising her profile among white South Africans. Also in 1959, she had a short guest appearance in Come Back, Africa, an anti-apartheid film produced and directed by the American independent filmmaker Lionel Rogosin. Rogosin cast her after seeing her on stage in African Jazz and Variety show, on which Makeba was a performer for 18 months. The film blended elements of documentary and fiction and had to be filmed in secret as the government was expected to be hostile to it. Makeba appeared on stage, and sang two songs: her appearance lasted four minutes. The cameo made an enormous impression on viewers, and Rogosin organised a visa for her to attend the premiere of the film at the twenty-fourth Venice Film Festival in Italy, where the film won the prestigious Critics' Choice Award. Makeba's presence has been described as crucial to the film, as an emblem of cosmopolitan black identity that also connected with working-class black people due to the dialogue being in Zulu.Makeba's role in Come Back, Africa brought her international recognition and she travelled to London and New York to perform. In London she met the American singer Harry Belafonte, who became her mentor, helping her with her first solo recordings. These included "Pata Pata", which would be released many years later, and a version of the traditional Xhosa song "Qongqothwane", which she had first performed with the Skylarks. Though "Pata Pata"—described by Musician magazine as a "groundbreaking Afropop gem"—became her most famous song, Makeba described it as "one of my most insignificant songs". While in England, she married Sonny Pillay, a South African ballad singer of Indian descent; they divorced within a few months.Makeba then moved to New York, making her US music debut on 1 November 1959 on The Steve Allen Show in Los Angeles for a television audience of 60 million. Her New York debut at the Village Vanguard occurred soon after; she sang in Xhosa and Zulu, and performed a Yiddish folk song. Her audience at this concert included Miles Davis and Duke Ellington; her performance received strongly positive reviews from critics. She first came to popular and critical attention in jazz clubs, after which her reputation grew rapidly. Belafonte, who had helped Makeba with her move to the US, handled the logistics for her first performances. When she first moved to the US, Makeba lived in Greenwich Village, along with other musicians and actors. As was common in her profession, she experienced some financial insecurity, and worked as a babysitter for a period.
Output:
What is the name of the film that blended elements of documentary and fiction and had to be filmed in secret?