When a system works, why mess with it? That seems to be the thinking of French director Fabienne Berthaud, who can't seem to make a film without Diane Kruger. Their third collaboration “Sky” — after 2006’s “Frankie,” about a model, and 2010’s “Lily Sometimes,” about two sisters — follows a French woman adrift in the contemporary American west after a fight with her husband (Gilles Lelouche).
This is your third film together. How has this collaborative relationship developed?
Fabienne Berthaud: It was really hard to collaborate with her. [Laughs] No, I think it's easier and easier each movie we do together because the more we know each other, the more we can go into deep things. In fact, why I want to work with Diane — of course, I love her and she is an inspiration for me — but it is also interesting to work with the same person. I can say, “I want to now take her into this universe, in a love story, in a violent moment.” I like this. I like when she's a little bit in danger.
Diane Kruger: It's really great to get to work with the same person over and over again. I feel like we've grown together. It was her first film and my first film when we first started working, and we've created this little family for ourselves. It's so amazing to how much she's matured and how much she's become the general on set, really. We never had money for the first movie — it was so crazy. And now we've made a film in the U.S., and for me as an actress, I would do anything for her because I trust her 100 percent. She could literally ask anything of me.
Berthaud: This is why I like working with her, because she always says yes.
The structure of the story is very lyrical and flowing. How would you describe your writing style?
Berthaud: The problem is I can't explain how I'm working. Because I'm not intellectual at all, and I always feel emotion. If I wake up one day and I am on a scene and suddenly I say, “OK, what is she doing now?” I write, and I can say, “No, she will go there.”
Kruger: The script for her is more of a blueprint. She has the story, and a lot of it organically evolves when we're shooting.