The role of a disarming little old lady playing a spy was acted with unexpected shrewdness by Whitty but it was Hitchcock who really brought this veteran actress out of her comfortable cocoon.

• 蕙蒂突破性的敏捷表演方式，演出没带武器、娇小的老妇担任间谍工作，希区考克真得让这位资深女演员突破旧有窠臼。