Actress Scarlett Johansson is not social media friendly, and says she cannot "imagine being that exposed".

Her recent movie "Chef", which also stars Jon Favreau, Sofia Vergara and Robert Downey Jr., is all about food, the digital world and power of social media.

But in real life, Johansson prefers to stay away from it.

"I'm not good at sharing things. I can't imagine being that exposed or involved. You're anyways vulnerable in every interview. That's already out of your control.

"To try and have this medium that's seemingly in your control and living there forever sounds elating, but people can take even that and rip it apart," the actress said in a statement.