Here's a black and white image of the same still.

INFORMAL REHEARSALS -- There is never anything formal, super-serious or heavy about the rehearsals through which Director-Writer Preston Sturges puts his stars, Barbara Stanwyck and Henry Fonda, for his new Paramount picture, "The Lady Eve."  They carry the spirit of the picture -- which is fast comedy -- into their huddles when they talk over dialog and action for a scene, as this picture of the trio demonstrates far more than mere words.