Question: In the novels about Harry Potter and his friends Hermione Granger and Ron Weasley, which movie has the first appearance of the main protagonist?
Sentence (from "Lord Voldemort"): Voldemort appears either in person or in flashbacks in each book and its film adaptation in the series, except the third, "Harry Potter and the Prisoner of Azkaban", where he is only mentioned.
Relevant evidence: No