According to Dark Horizons' preview of their most recent visit to the set of Harry Potter and the Goblet of Fire the upcoming movie will "be the big crossover film. It's the biggest, boldest, most fun and epic yet."
Dark Horizons' preview report:
However what I saw on Goblet simply floored me. Azkaban for all its magic is a dark and intimate little story. Goblet on the other hand is an action epic of a size that makes the last Spider-Man movie seem small. Concerns have been raised over the hiring of British Director Mike Newell to take on the big chair but from what I saw there he and the team have done an amazing job.
The Triwizard tournament tasks, the Death Eaters, the Dark Mark, the World Cup, the Yule Ball sequence, etc. All of these scenes have taken paths and looks I had not expected. Sequences in books rarely tend to live up to imagination on screen but this is one of the few times I think it's the other way around. Fans will go absolutely nuts over it all and even those who've never been fully into Potter - this will be the big crossover film. It's the biggest, boldest, most fun and epic yet.
In the coming months they will have reports with assorted cast and crew, the producer, the creature effects people, the costume designers, and three of the young cast who play competitors in the Triwizard tournament.