LOS ANGELES-Michael Fassbender refused to answer questions regarding his romance with Alicia Vikander in a new interview.

The couple has been dating for two years, and very rarely talk about their relationship, which reportedly began while filming their new movie, The Light Between Oceans. And when quizzed about their love life in an interview with Entertainment Tonight, Fassbender was quick to shut down the questioning.

“I’m not going to talk about my private life with a total stranger, unless I feel like I need to. Why would I? I don’t,” he retorted. Vikander, however, sweetly deflected the question with a more diplomatic response than her 39-year-old Irishman beau. “I think we’ve made a clear statement that we keep certain things just between us,” she said. “It was very easy to unite, but that’s quite personal.” The pair stars in the upcoming drama, adapted from the M.L. Stedman novel and directed by Derek Cianfrance, which follows the story of a lighthouse keeper and his wife who raise a baby they rescue from an adrift rowboat.

And Michael was keen to dispel reports they had fallen in love while filming the movie back in 2014.

“It wasn’t the first time in a movie either of us had played somebody who is falling in love. There is an element of separation there. If I’m playing a murderer, I don’t go out and start murdering people,” he said sarcastically.

The Light Between Oceans is released in the U.S. on 2 September.