- Actor-Shared Background: Michael Redgrave actually did go to Cambridge, just like his character, Gilbert. He was also a chorister and took singing lessons early on in his career, which gives all the more credibility to Gilbert's statement that he has "a powerful voice".
- BFI Top 100 British Films: #35
- What Could Have Been: Vivien Leigh tested for the role of Iris Henderson.
Trivia / The Lady Vanishes