I've talked before about the power of the closeup. When the frame is so close to a character's face, we the audience can feel the character's emotions more strongly. We develop an intimate connection, an empathy.
Few directors understood film technique as well as Alfred Hitchcok, and he understood better than just about anyone else how, to borrow his phrase, "play the audience like a piano." His films are filled with iconic closeups, but I want to examine one from Shadow of a Doubt, where he combines a closeup with another technique - the zoom - for chilling effect.
Shadow of a Doubt stars Joseph Cotton as the Merry Widow Murderer, a sociopath who murders rich widows to steal their money. Theresa Wright plays his niece who gradually learns the horrifying truth about her beloved Uncle Charlie.
The moment I want to talk about is a monologue by Joseph Cotton.