There is a shot at the end of Lost in Translation when Bill Murray whispers something into Scarlett Johansson’s ear. We don’t get to hear what he says because the moment is a private one. What was said is not so important as the idea that Murray manages to open up to someone, if only for a short time.
I find it interesting that so many people have spent so much time trying to figure out what Murray said. As if that will unlock a deeper understanding of the film.
Lots of theories exist and, as with most such things, none of those theories are more interesting than that private exchange we don’t get to share.
I think there is some sort of insatiable desire to know the unknowable. Watching a movie is a voyeuristic experience. As such, we feel we are entitled to know everything The movie should keep no secrets from us. And yet the final shot of the film is one big secret.