Cecelia Ahern has revealed that the sequel to PS I Love You, entitled Postcript, is set to be made into a film with Hilary Swank reprising her leading role from the much-loved 2007 movie adaptation.

The Irish author unveiled the exciting news exclusively on The Ryan Tubridy Show on RTÉ Radio 1 on Thursday, saying she was "delighted" that the Oscar-winning actress would be returning in the role of Holly Kennedy.

The sequel takes place seven years after the death of her husband Gerry, who was played by Gerard Butler in the film.

Ahern told Tubridy that Swank contacted her directly to express her interest in returning for the next film.

Hilary Swank in the 2007 film PS I Love You

"There will be a Postscript movie," Ahern said. "One of the first people to email me when she heard the news was Hilary Swank.

"She was so excited, she wanted to read the book and she said 'I would love to support you in any way, shape or form'. Then she read the book and she said 'I want to make this movie'."

"It felt like a lovely reunion everyone back together again, now we don't have a director or a screenwriter or any of that, nothing's been announced yet, but the movie's happening! I'm delighted."

Hilary Swank contacted Cecelia Ahern directly to express her interest in the PS I Love You sequel

Ahern's bestselling debut novel PS I Love You was released in 2004. The writer said she resisted writing a sequel to the much-loved book until she landed on the right concept.

"I said I'd never do it from the beginning, from the moment I wrote PS I Love You people were asking if I'd write a sequel and there were so many reasons why I wouldn't", she explained.

"I had brought the character to exactly where I wanted to bring her, I couldn't see what the story would be. Also just because something's a success doesn't mean you should necessarily write a sequel. And I didn't want the thing that made my career to be the thing that breaks my career!"

She continued of her follow-up: "PS I Love You was from the perspective of the person who was grieving, the people who are left behind, and I wanted to tell the story from a new perspective, from the people who've been told they're terminally ill or they have life-altering conditions.

"Postscript is about a group of people who've been inspired by Holly's experience and they ask her to help them write their letters for their loved ones."

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