The stars appear together in Derek Cianfrance's upcoming crime drama The Place Beyond The Pines, which also stars Bradley Cooper, Rose Byrne and Ray Liotta.
© PA Images
"I have never felt so creatively satisfied on a film," Mendes told Marie Claire of working with Gosling."
She added that the actor, who is her reported boyfriend, was "amazing" and a "dream co-star".
Quizzed on her romantic relationship with the Drive star, she added: "Stop, just stop! I'm not gonna budge. I feel uncomfortable talking about it. It's too personal.
Pushed on whether she wanted marriage and children, she said: "Those are such boring topics to me.
"I don't like talking about things that I want in the future, because I feel by verbalising things, they won't come true."
