From WENN.com

The Greek actress plays a love interest for Daniel Craig's superspy character in the 23rd Bond blockbuster, and Sotiropoulou reveals that due to strict secrecy protocols, she didn't know what she was doing on set until the time came to shoot her scenes.

She says, ""I was one of the people who never had a script. I just got told what I'd be doing on set by the director. They have to be so careful. You have quite strict contracts that say you can't say anything about the plot. And everyone respects that.""