United Kingdom, Feb. 24 -- Gugu Mbatha-Raw will never talk publicly about her personal life.

The 41-year-old actress believes she needs to maintain a sense of mystery in order to continue her acting career so she has vowed to keep her private life out of the spotlight indefinitely.

She told the Guardian newspaper: "It's a way to have longevity as an artist ... If people have too many ideas about your world, it dilutes the work.

"There's this [actress] Michaela Coel quote from a few years ago, about how it's OK to disappear.

"As an artist you need to refill the well, have something to say."

Gugu also insist she's happy not to have been sucked into using social media to advance her career, adding: "I'm thankful to have a perspective th...