Acting : Stanislavski and creating a role by Emily Care Boss

Currently reading Stanislavski's Creating a Role. I've been surprised at how much more there is to "the system" than simply getting your feelings to line up with the character, or putting yourself into the same physical situation as the person you portray. Of course popular conceptions of it are simplified! The initial section on preparing for a role consists of reading and thinking deeply not only about the character you'll be playing, but the whole set that comprise the work, and the world they inhabit. Look at each of them from the mind's eye in a way to help you understand deeply their motivations and interactions. He even leads us through a tour of the world in the play he chooses as an example, Woe from Wit, where the actor uses their imagination to have interactions with the characters. Only from there do you begin to put yourself into the single role assigned to you. This is beginner stuff, of course, for professionals steeped in this world. It's of interest to me, coming from a role playing game background, moving into interactive and improvised theater, that the beginning place for Stanislavski uses so many of the tools that are stock in trade for rpg. Are these tools still utilized by actors, directors or filmakers?