“I love that Tina is a person who is, who possesses kind of contrasting qualities. That she can be at once, insecure and confident, and I love that there was a little bit of room in that big, epic story to show that a person…

“It’s [Fantastic Beasts 3] progressive. It’s very Jo. It’s taking the story on in a way that’s expansive. I think it’s good, it’s still confident, like the previous film was. It got a little bit of flack, I think, for being very much of a…

“At the start he [Yusuf] was a character who transformed into an animal. There was a lot more prosthetic work, so it amused me a lot. I already saw myself transforming into a bird, etc. And when I was told that we were removing this part, I was…

“He [Dumbledore] was very close to going round the world and conquering the world with Gellert Grindelwald and suddenly it was like he caught himself, so I think he’s always pulling back and, in a way, what we’re seeing in this younger version, is a…

Has he fully given up hope that Grindelwald can come back to his side? “I don’t think he gives up on people, no, I think he still believes that there might be a possibility of turning him. The reason I stick to that isn’t anything…

“I think they [Leta and Newt] were probably still quite close even when Newt goes to America, which is why I think it’s such a jarring thing to come home and find I’m engaged to Theseus. We’ve all known each other for a really long…

“To not look at, and embrace, all the things that we love about Dumbledore would have been foolhardy, but, at the same time, I was really relieved that David [Yates] and Jo both said, ‘Look, there’s so much yet formed, yet resolved in this man’s…

“Fantastic Beasts is giving me this opportunity to explore all of that and reveal things that I’ve had in my mind for a long time. So that’s enormously satisfying, but I’m inventing too. So, it’s taking all of the things that I thought happened and…

“Newt is the heart of these movies, and in a very different way to the way Harry was the heart of the first movies. Newt, for me, represents a man who is good without realising he’s good. He is a man who needs persuading to…

“I think that the Potter world contains certain universal themes about what makes us human, what keeps us human, and what dehumanises. And I think that that has definitely connected with people around the world and, in the Fantastic Beasts world, as you know, we’re…