Bae Doo Na would prefer if people were not so interested in her relationship with her "Cloud Atlas" co-star Jim Sturgess.

That's what the actress said when she was recently interviewed for High Cut magazine.

"It's not something related to my job like attending a movie press conference," said Bae. "I think people are curious, but I still feel a bit burdened. I think I'd be thankful if people didn't take interest in it."

It was a polite way of saying that her relationship with Sturgess, if there was one, was not really anyone's business but theirs.

Bae and London-born Sturgess met when she played clone Sonmi 451 in the film directed by The Wachowskis and Tom Tykwer.

Sturgess and Bae played several roles in the film, two of which were romantically linked. He portrayed Korean rebel Hae Joo Chang opposite Bae's android character, as well as abolitionist Adam Ewing and his wife, Tilda.

The two became closer on set when he helped her with her role.

" He became my friend," said Bae. "He was so kind and considerate. We just laughed a lot, hanging around Berlin with each other. We just built up some friendship."

It was Bae's first English language role. Sturgess admitted to being nervous about meeting her and about overcoming the language barrier, but said she won him over with her friendly nature.

"I was worried because we play lovers in the film and I wasn't sure how we'd be able to show chemistry when we could not communicate," said Sturgess.

They obviously overcame the language barrier and were seen sharing jokes on set. During press conferences he would help her express herself in English and people noted that he seemed genuinely fond of her. But when the paparazzi snapped photos of them walking down Venice Beach, with their arms linked, people wondered if they were dating. At that point, Bae denied the rumors saying they were merely friends.

When Sturgess visited Korea on a press conference for Cloud Atlas, Bae showed him around town. But she refused to clarify their relationship.

Bae Doo Na first became known outside of Korea for her role as the political activist Cha Young Mi in Park Chan Wook's "Sympathy for Mr. Vengence." She appeared as archer Park Nam Ju in Bong Joon Ho's "The Host" and as an inflatable sex doll in Hirokazu Koreeda's Air Doll.

Film reviewers praised her acting in "Cloud Atlas." She will work the Wachowskis again for their next movie, the futuristic dystopian "Jupiter Ascending."

As to the future of her friendship with Sturgess, she's not talking.