If at all possible while you are in school make time for a survey of film class. My favorite discussed motion picture from its inception through the Hollywood studio years and on into the 1950’s. The focus was on pioneers and innovators within the film industry, such as Griffith, Chaplin, Keaton, Lang, Von Sternberg, Sturges, and Ford. The course introduced us to the techniques and aesthetics of filmmaking, as well as major styles and genres. Above all else there was an emphasis on the skills necessary to critically analyze films.
The Art of Film Acting – Acting for the Camera (200 Level Course)
Subtext is what you really are saying regardless of what your lines are saying. It is the true meaning underneath dialogue, and it is what you communicate when you talk to anyone in the film.