Harry Potter and the Chamber of Secrets (2002, GBR/USA/GER) C-157m. SCOPE **½ D: Chris Columbus. Starring Daniel Radcliffe, Rupert Grint, Emma Watson, Richard Harris, Maggie Smith, Robbie Coltrane, Kenneth Branagh, Alan Rickman, Jason Isaacs, Julie Walters, Miriam Margolyes, John Cleese. Second installment in the HARRY POTTER series shows Harry's second year at Hogwarts, where he investigates mysterious events surrounding the Chamber of Secrets. Several new characters are introduced, but plot remains too episodic, almost like a video game. Good effects. Score by John Williams. Followed by HARRY POTTER AND THE PRISONER OF AZKABAN (2004).