Character mistake: In the scene where Scottie reveals his first investigation of Madeleine to Elster in the men's club, Elster recounts the history of his wife saying that her great-grandmother was the mad Carlotta. But when he sums up the story at the end of the scene he says it was her grandmother.

Continuity: In the final scene, pieces of Madeleine's hair-do come down in the struggle up the bell tower steps. At the top of the tower, before she falls, her hair is in perfect shape again.

Visible crew/equipment: At the end after Madeleine falls, the camera pulls away from the church tower. You can see the shadow of the camera.

Continuity: Directly outside Scotty's living room window is an uninterrupted view of Coit's Tower and Telegraph Hill. However, when the apartment is seen from the outside, there is a building across from where the window would be and Coit's Tower is much further to the right.

Continuity: James Stewart sees Kim Novak entering a flower shop by the back door. Watch the shadows on the ground: in the very next shot, when Stewart follows Novak, the shadows are very different.

Continuity: At the point where Scottie is following Madeleine in the side-street, she enters a building and he follows. When he is inside, in one shot the light reflecting on the door window is white and in the next it is green.

Continuity: When Scottie follows Madeleine back to his home and joins her at his porch, Scottie holds the banister on his front porch as he climbs the steps & then moves his arm to his side twice.

Continuity: When Scottie (James Stewart) visits a bookshop to question its owner, the book display in the shop's window changes between the time he enters and exits the store.

Plot hole: In the final scene in the belltower you can see shadows from the surrounding trees. That's because this scene was shot at 3 in the afternoon. They just used a filter to make it look like it was night.

Continuity: In the scene where Scottie is reporting to Elster about his findings, there are ice cubes in their drinks, but in subsequent close-ups, the ice cubes are not there.