Final answer:
In 'Wonder,' the fifth-grade campers watch 'The Last Unicorn' during their camp trip, which serves as a setting for character development and thematic exploration.
Step-by-step explanation:
In the book Wonder, the fifth grade campers see the movie The Last Unicorn at camp. This detail is part of the larger context of the narrative which focuses on the life and experiences of August Pullman, a boy with facial differences who attends school for the first time. The outing to see the movie provides an opportunity for the characters to bond and for the story to explore themes of friendship and acceptance outside of the school environment.