 A film critic once summarized the actress as "a character actress in a screen siren's body", a sentiment with which her "Scarface" co-star and friend Al Pacino agrees.Often commended for her ability to mask her true feelings and emotions, Pfeiffer frequently uses this technique to her advantage in period films, a genre that has become a trademark of hers.Pfeiffer herself has admitted to being skilled in this particular area but at the same time believes that disguising one's feelings is not uncommon, speculating, "that's how most people behave.