Kristen Stewart has revealed that she doesn't smile for photographers, because it would bring too much attention.

The Twilight star, who is known for not smiling in photos, admitted she feels she would be unable to please them all the time.

"Now I feel like if I smiled for a paparazzi photo - not that I ever would - that's exactly what people would be desecrating me for," she told Elle US.

"They'd be like, 'Now you're going to give it up, now you're a sellout.' Like, Okay. What do you want? What would you like?" she added.

Kristen, who played Bella Swan in the big screen adaptations of Stephenie Meyer's books, also said she had no idea how big Twilight would be.

"The day the movie came out there was a picture of me - in the New York Post, I think. I was sitting on my front porch, smoking a pipe with my ex-boyfriend and dog. And I was like, Oh s**t, well, I have to be aware of that," she recalled.

Since the Twilight films ended, she has appeared in more indie dramas such as Camp X-Ray, Clouds Of Sils Maria and Anesthesia. She has been filming sci-fi romantic drama Equals with Nicholas Hoult.

"Never at any point have I sat down and plotted how I should proceed from here on," she said.

"As soon as you start thinking about your career as a trajectory - like, as if you're going to miss out on some wave or momentum - then you're never doing anything for yourself anyway. Then you're truly, actually, specifically working for the public. You're turning yourself into a bag of chips."

PA Media