Wikimedia Commons has media related to Harry Potter films.

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American coming-of-age films
American film series
Films set in boarding schools
British coming-of-age films
British film series
Fantasy film series
Films about immortality
Films about magic
Films about orphans
Films by featured character
Film series based on British novels
Film series based on children's books
Film series based on fantasy novels
Films set in castles
Films set in England
Films set in Scotland
Films set in the 1990s
Films shot in the United Kingdom
Heyday Films films
Teen fantasy films
Teen film series
Warner Bros. Pictures franchises
Works based on Harry Potter
Wizarding World films
Films about the education system in the United Kingdom