Callum Turner says his fiancée Dua Lipa is "the most beautiful woman in the world".

The 35-year-old actor's engagement to the pop superstar was announced earlier this year and he explained how he was instantly smitten with the Houdini hitmaker when they eventually met after several "near misses".

Callum told The Sunday Times Style magazine: "We had maybe two, three, four, five near misses over our time where we didn't meet. Mutual friends and places. There's one when she went to a party and then I went to a party but I arrived minutes after she left.

"I arrived at 2 in the morning and she left at 1.45 - she checked her Uber and I checked a photo I'd taken opposite my friend's house when I arrived.

"There were loads of things like that and then, when we were both able to, we were both single and whatever, I just thought she was the most beautiful woman in the world."

Callum recalled how he and Dua, 30, had an immediate connection when they met for the first time in Los Angeles.

The Fantastic Beasts actor said: "We sat next to each other and realised we were reading the same book, which is crazy. It's called Trust (by Hernan Diaz) and I had just finished the first chapter and I told her and she looked at me and said, 'I just finished the first chapter too.' I said, 'So we're on the same page.'

"In the movie version of it I look up to the sky and I'm like, I hear you. I understand. The signs are loud, don't worry. And that was really the first (moment)."

Callum and Dua both have busy schedules but always try and make time for each other in order to keep their romance alive.

Asked how they keep in contact, he said: "Well, FaceTime is a wonderful thing. And the other rule is that it's never not worth it - that's our slogan.

"If you can go for two days, just f****** go. And if you're tired, it doesn't matter because you're going to have a nice time and have a nice memory."

Turner added: "I just flew to Boston for two days and I was exhausted but we had a really nice time. We went to an incredible restaurant, Neptune or something - I always forget the name of places.

"It was one of the best restaurants I've ever been to in my life and I did it with her so I'm glad I went."