The fourth Harry Potter film, the Goblet of Fire, will be in cinemas soon with an even bigger cast-list. Katie Leung has joined this film as Cho Chang.
Cedric Diggory (played by Robert Pattinson) is another Hogwarts student we meet. He gets to represent Hogwarts in the Triwizard Tournament. (As well as Harry of course!)
Viktor Krum (played by Stanislav Ianevski) is also in the tournament, representing another magical school, the mysterious Durmstrang.
The final contestant in the tournament is Fleur Delacour (Clemence Poesy), from the Beauxbatons school. She seems to have special hold over some of the boys...
As usual a new Defence Against the Dark Arts teacher is required. This time it's Mad-Eye Moody (played by Brendan Gleeson). Nice false eye!
Barty Crouch Senior (Roger Lloyd-Pack) is the Ministry of Magic wizard helping out with the Triwizard Tournament.
His son, called Barty Crouch Junior (David Tennant), also appears in the film, largely in flashback scenes.
Big sporting events attract lots of media attention, and Rita Skeeter (Miranda Richardson) is the star hack for The Daily Prophet.
The tournament also brings with it some foreign wizards. Professor Karkaroff (Predrag Bjelac) is from Durmstrang, and has a shady past...
Another new face is Madame Maxime (Frances de la Tour), who is in charge of Beauxbatons. She seems to get on very well with Hagrid.
Not all the new wizards are linked to schools though. Amos Diggory (Jeff Rawle) is Cedric's dad and joins the gang at the Quidditch World Cup.