Sienna Miller epitomizes 'all-star glamour' in the October edition of Vogue UK. See Her Photos (Photo by Mario Testino for Vogue)

Sienna Miller epitomizes ‘all-star glamour’ in the October edition of Vogue UK. See Her Photos (Photo by Mario Testino for Vogue)

Robert Pattinson, who is engaged to UK singer FKA Twigs, has been linked to Sienna Miller, the UK actress who is co-starring with Pattinson in his new movie “The Lost City of Z.” But the report is being widely discounted.

Still it’s not hard to see why tabloids are speculating (as usual, wildly) about the two.

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Miller, 33, is sizzling in a new photo spread for the UK edition of Vogue magazine. She was also engaged to, and had a child with, actor Tom Sturridge, one of Rob’s good friends.

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Miller and Sturridge broke up in July after a four-year relationship. He reportedly wanted to get married and have more children, according to People. But Miller is enjoying a career resurgence.

The British actress has had a star-crossed personal life.

Sienna Miller’s Sizzling Glamour
(Click Photos to Enlarge!)

She was engaged to “Alfie” co-star Jude Law in 2004, but their relationship ended disastrously after Law was caught in an affair with the couple’s nanny. At the time, Miller was also rumored to be having an affair with actor Daniel Craig.

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Sienna and Law broke up in July 2005.

Miller bounced into another disasterous relationship in 2008, with actor and oil heir Balthazar Getty, who was married and the father of four children.

She was infamously photographed with him, romping topless on tropical beach, while his wife was home and pregnant. The affair caused a scandal in her home country. For a time, she was one of the most hated actresses in Great Britain.

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But since then, she’s turned her career around.

She began dating Sturridge in 2012 after a brief reunion with Law in 2009, while both were playing on Broadway in separate shows.

Sienna was a judge at the Cannes Film Festival in May and has been spending a large amount of time in the United States. She’s appearing in four films this year.

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She has two slated for release in 2016, including the one she’s working on with Pattinson.

The “Twilight” hunk plays British explorer Percy Fawcett. He ventured into the Amazon with his son in search of an ancient lost city and disappeared without a trace in 1925. Sienna plays his wife, Nina.

“It’s been really quite overwhelming recently, just with the volume of everything going on,” she said in Vogue’s October issue.

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“Everything is shifting. It’s actually been the shittiest year, and amazing. It’s always yin and yang. I feel like if you’re excelling in one area, it’s hard to manage both and I do feel like the work is going really well,” she added.

As for Pattinson, he’s still in a solid relationship with Twigs, according to our source.

Check out her stunning photos, let us know your thoughts and be sure to follow IM on Twitter for the latest celebrity news.

For more on Sienna check out Vogue UK online.