Often there are details in movies or television series, which go unnoticed, but it says a lot of knowledge to be of the actors from the screen tell fictional stories, but often are based on their own experiences.
Something as simple as catching a glass of wine speaks volumes about the behavior of that actor or actress who shows on the screen. Usually when taking a glass of wine always we take the cup, when it should be done by foot. The explanation given by the experts is that this wine does not change temperature.
Is an insignificant detail that does not alter the plot of the movie, but even in real life made such action as mayoróia of us, on the screen, especially if characters embody a role wealthy or sophisticated, should be taken into account. Being an actor is not only to have appeal, you must know declaim and therefore get into the role they are playing