Continuity: After returning from their honeymoon, Johnnie pours tea for Lina. He picks up the teapot, then lifts it again in the cutaway shot.
Continuity: When Lina reads the notice of the Beaky's death, the wall behind her changes at times.
Continuity: When Lina looks at Isobel's book while Johnnie is on the telephone, there is a large tear in the book jacket above Isobel's photo. In the next scene, when Lina takes the book on her visit to Isobel, the book jacket is undamaged.
Miscellaneous: According to the invitation shown on screen, the hunt ball is on March 7, but the telegram that persuades Lina to attend the ball is dated March 8.
Continuity: Hitchcock makes his cameo appearance about forty minutes in, posting a letter in the village. However, when the shot changes, he has suddenly disappeared from beside the pillar-box.
Miscellaneous: Hitchcock makes his cameo appearance about forty minutes in, posting a letter in the village. Note the background in this shot and a shot just a few seconds earlier with the car driving by and a man walking while smoking. They are both exactly the same background shot with same car, people, with one being enlarged. It could be the film was so expensive, the re-use of background shots was needed.
Audio/visual unsynchronized: The barrister's lips and speech are out of sync when reading Lina's father's will.
Errors made by characters (possibly deliberate errors by the filmmakers): At :15 into the film, Grant's character, whose name has been seen in numerous photos identified as "Johnnie Aysgarth" (and is so-named in the closing credits), a telegram to Fontaine's character is signed, "Johnny."
Continuity: In the dinner scene at her parent's house after Lina's walk with Johnny, the glasses of water in front of her parents are both full, but during the course of their conversation with Lina, neither of them take a drink of water. When Lina leaves to answer the phone, but glasses are empty.