When Walter Abel tells Claudette Colbert that she has got a new assignment in Berlin and she is told she is going in 3 days time on Saturday, she receives a cable dated September 1st, 1939, from Ray Milland. September 1st, 1939, was a Friday.
The Hebrides are described as "off the coast of Ireland." In fact, these islands are part of Scotland.
It's the equivalent, perhaps, of saying that Vancouver Island or Newfoundland are part of the USA.