"When the news broke that was the first that I heard of it and I had a bit of a freak out on Twitter. I actually tweeted at Warner Bros, 'Please put me in the movie!' They were like, 'Sounds good.' I don't know what that means."

Evanna said she doubted Luna would make an appearance: "I don't think Luna will be in it, because it's set 70 years before and with the time it took us 10 years to make Harry's span at Hogwarts, 70 years of a time lapse between this guy's life and when Harry's born, I think I'll be too old. I think I'll be an old woman by the time I get round to it."

"Someone did say on Twitter, they said, 'You could do the story from the point of view of Luna relating the story to her children about your great grandfather 70 years ago,' which I would be totally down for.

"But I'm also down for playing a fantastic beast, I think that would be quite fun."