All of these red carpet events may seem natural for you journalists, but it doesn't feel natural for actors.
Experience teaches you that the man who looks you straight in the eye, particularly if he adds a firm handshake, is hiding something.
It's the opposite journey from what I've usually done with films. I find it very easy to go from, say, a lit, pleasurable environment, like what you see outside there, to a very dark place. But the opposite journey, which is what this movie takes, is much more complicated.