Harry Potter fans can expect a dark and funny rollercoaster ride when they watch Harry Potter and the Half-Blood Prince, according to the film's stars.
Tom Felton, Matthew Lewis and James and Oliver Phelps spoke to Newsround hours after seeing the film for the first time and reckon we're in for a treat.
Draco Malfoy actor Tom Felton said the new film is definitely much funnier.
"There's lots to look forward to," he said. "I was laughing through the whole two hours."
Matthew Lewis, who plays Neville Longbottom in the film series, said fans will see his character getting more strong-willed and starting to change in the Half-Blood Prince.
And it's probably no surprise to fans of the Harry Potter books that Matthew thinks the story of the Half-Blood Prince isn't that nice, in terms of what happens in it.
"Every year, we always say 'it's much darker, this one', but this one really is. It gets pretty heavy in parts," he said.
"But the balance they've achieved with the comedy... the timing is wonderful.
"Jim Broadbent [Professor Slughorn] is superb, Rupert Grint [Ron Weasley] is on top form and it is very very funny."
Meanwhile, away from Hogwarts, Fred and George Weasley have opened their own joke shop, but what was it like filming away from the famous school?
"It was really cool because we got to work in probably the best set there," said Oliver.
"The set Fred and George have is so insane we weren't disappointed to be away from Hogwarts at the time," added James.
"But when we saw the film I realised how much I missed the shoots in the Great Hall and on the quidditch pitch."