United Kingdom, Feb. 22 -- Natalie Portman says facing speculation about her marriage to Benjamin Millepied has been "terrible".

The 'Black Swan' actress, 42, spoke out about rumours she and dancer Benjamin, 46, were having troubles in their relationship in a new interview with Vanity Fair.

When asked about the stories recently published about the pair, Natalie said: "It's terrible, and I have no desire to contribute to it."

Natalie - who was born Natalie Hershlag, married Benjamin in 2012 and with whom she has children Aleph, 12, and six-year-old Amalia - also admitted she's been conscious of how she is perceived by the public since she broke into acting as a girl.

She added: "I got very protective of it very early on. I chose a diff...