Question: was michael gambon in the chamber of secrets

Answer: No, Dumbledore is portrayed by Richard Harris in the film adaptations of Harry Potter and the Philosopher's Stone and Harry Potter and the Chamber of Secrets. After Harris' death, Michael Gambon portrayed Dumbledore for all of the remaining Harry Potter films. Jude Law will portray Dumbledore in Fantastic Beasts: The Crimes of Grindelwald.