英検1級道場－英語は繰り返しを極端に嫌う言語である

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英語は繰り返しを極端に嫌う言語である

典型的な例として下記を使っています
「　　」で示す単語がそうです
映画について言っている個所が7つあるのですが、わざわざ4種類の単語を使い分けています
films screenings movies cinema

2014-1
(A) Pedal Power
Conservation groups in Uganda are in a race to save the endangered mountain gorilla.
Many Ugandans, however, are unaware of the threat, so a movement called the Great Apes 「Film」 Initiative is trying to educate them about it.
The group began showing 「films」 about mountain gorillas, but could only show them in places that had electricity.
People from rural areas therefore had to walk miles to see 「the screenings」, and they were often turned away due to overcrowding.
Organizers then came up with a way to bring 「the movies」 to isolated villages:
pedal-powered 「cinema.」
With a person pedaling a specially adapted bicycle that generates electricity, 「the films」 can now be shown in rural areas.
At 「the screenings」, audience members line up to take turns pedaling.
Organizers say people not only leave full of enthusiasm for protecting the gorillas but also learn about nonpolluting power sources.
Questions
No. 13 What problem did the Great Apes Film Initiative have?
No. 14 What is one thing we learn about pedal-powered cinema?