It's surprisingly good!

Rating: Null/10 (8 September 2004)

A massive improvement on The Chamber of Secrets which I found seriously disappointing. Although Master Radcliffe's voice has broken it doesn't appear to have improved his acting ability.
Despite that, the supporting character's of Pfr. Snape, Weasley (Ron), Weasley (Twins), Malfoy, Hermione and the Fat Lady, not to mention Hagrid, add to the enjoyment of this movie.
I have not read this particular installment of the franchise which maybe made it better. As a standalone experience, it stood "head and shoulders" above CoS and Philosopher's Stone.
Hire it, borrow it, download it ... it's worth 2 hours of your life!