With her character being a robot, you can see why she had so much trouble talking about the movie in her interviews. I remember one question relating to how she acted next to the robots who aren't really there, and she hesitated as if she wanted to say that she actually was one, but probably knew that she wasn't allowed to spoil the surprise.

One thing that puzzles me from the movie - how come Bumblebee didn't sense that she was a Decepticon when she hopped into him? And she didn't know that the car was Bumblebee. Even if they can't sense others in their disguise modes, surely she would have known from intel, that it was Bumblebee, based on her assignment to find and capture/interrogate Sam. You wouldn't take on a mission without knowing all about it, including his known associate - Bumblebee, a yellow camaro. The moment she hopped into the car, she would have at least tried to sabotage it from the inside.