So i found this on the Filmexperiemce.net and quick interview about her experience in GODZILLA. Nothing to big but something new.
This is what she says-
I just filmed Godzilla in the summer. I was lucky enough to be beside Ken Watanabe, another great, [looks up, making prayer gesture] 'Thank you!'
Sally in the Godzilla teaserBut you have scenes with Godzilla, right? Green screen.
I had one moment where I think I saw him through a window, his eye or the back of his head, maybe?
You had to picture something large and monstrous.
I had to do a whole preparation...
...really dig into your character's history [Laughter]
Godzilla, actually, he was good. I have to say that. Even though it was a green screen, he was good
Here is the Link to the Article: http://thefilmexperience.net/blog/2014/1/1/interview-sally-hawkins-on-cate-blanchett-woody-allen-and-go.html
But Looks like that Sally Hawkins will be with Ken Watanabe alot in this new upcoming Godzilla Film.