Marion Cotillard still is telling people she’s not Talia nor is she even a Bad Guy. While talking to The hollywood reporter she said this about her character:
“They go through difficulties, and she wants to help provide the world clean energies. She’s a good guy.”
She also said she has a very small roll due to her pregnancy. I’m not buying the not Talia part though, the leaked picture we’ve seen clearly show she is NOT a good guy.