Carrie Fisher has claimed she had an "intense" affair with Harrison Ford during the making of the first Star Wars film in 1976.

The 60-year-old actress says she was 19 years old when she had a three-month romance with the Han Solo star, then a 33-year-old married father of two, which she kept secret for 40 years.

Fisher, who played Princess Leia in the original Star Wars trilogy and who also appears in JJ Abrams reboot of the franchise, told People magazine: "It was so intense. It was Han and Leia during the week, and Carrie and Harrison during the weekend."

In an excerpt from her memoir, The Princess Diarist, Fisher said she and Ford spent their first night together following a birthday party for Star Wars director George Lucas.

"I looked over at Harrison. A hero's face - a few strands of hair fell over his noble, slightly furrowed brow," she wrote.

"How could you ask such a shining specimen of a man to be satisfied with the likes of me?

"I was so inexperienced, but I trusted something about him. He was kind."

Sealed with a kiss: Carrie Fisher has opened up about her "intense" affair with Harrison Ford

Fisher and Ford reunited on screen in 2015's Star Wars Episode VII: The Force Awakens. In the course of the original Star Wars trilogy, Fisher and Ford's characters fall in love.

Ford, has been married three times, divorcing his first wife Mary Marquardt in 1979. He separated from his second wife, screenwriter Melissa Mathison, in 2001 and the couple later divorced.He has been married to Ally McBeal actress Calista Flockhart since 2010.

Fisher was previously married to musician Paul Simon.

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