To be released: June 4, 2004 (In Belgium, Brazil, France, Germany, Italy,Netherlands, UK, USA) June 10, 2004 (New Zealand, Australia, Czech Republic), June 25, 2004 (Bulgaria, Spain), June 26, 2004 (Japan), July 15, 2004 (Argentina), August 17, 2004 (Poor Norway!)
Director newbie: Alfonso Cuaron
New cast members: Michael Gambon as Albus Dumbledore, Gary Oldman as Sirius Black, Timothy Spall as Peter Pettigrew, David Thewlis as Remus Lupin, Emma Thompson as Professor Trelawney, Robert Hardy as Cornelius Fudge, Pam Ferris as Aunt Marge.
Writing Credits: JK Rowling (wrote the book), Steven Kloves (screenplay).
Music: John Williams

Cast (to find names easily, hit Cntrl F):

Daniel Radcliffe: Harry Potter
Emma Watson: Hermione Granger
Rupert Grint: Ron Weasley
Robbie Coltrane: Rubeus Hagrid
Gary Oldman: Sirius Black
Michael Gambon: Professor Albus Dumbledore
Alan Rickman: Professor Severus Snape
Maggie Smith: Professor Minerva McGonagall
David Thewlis: Professor Remus J. Lupin
David Bradley: Caretaker Argus Filch
Julie Christie: Madam Rosmerta
Emily Dale: Katie Bell
Warwick Davis: Professor Flitwick
Alfred Enoch: Dean Thomas
TOm Felton: Draco Malfoy
Pam Ferris: Aunt Marge
Dawn French: The Fat Lady
Richard Griffiths: Uncle Vernon Dursley
Robert Hardy: Cornelius Fudge
Joshua Herdman: Gregory Goyle
Lee Ingleby: Stan Shunpike
Matthew Lewis: Neville Longbottom
Miriam Margoyles: Professor Sprout
Harry Melling: Dudley Dursley
Devon Murray: Seamus Finnigan
David PHelps: Fred Weasley
Oliver Phelps: George Weasley
Chris Rankin: percy Weasley
Fiona Shaw: Aunt Petunia Dursley
Timothy Spall: Peter Pettigrew
Jim Tavare: Tom
Danielle Taylor: Angelina Johnson
Emma Thomson: Professor Sybill Trelawney
Julie Wlter: Molly Weasley
Jamie Waylett: Vincent Crabbe
Paul Whitehouse: Sir cadogan
Mark Williams: Arthur Weasley
Bonnie Wright: Ginny Weasley
Luke Youngblood: Lee Jordan

Sources: HP Fan Zone, IMDB