When I was walking home from this movie, I saw a video on Twitter of Michael Caine explaining how to effectively act drunk.
"You're an actor who's trying to walk crooked and talk slurred... A drunk is a man trying to walk straight and talk properly."
I think that's the real strength of Saoirse Ronan's performance in this film, because she never for a moment seems an actor trying to look drunk (in a way that Nicolas Cage in Leaving…