Continuity mistake: The first time Katherine is seen eating an ice cream cone outside, in Cortona with Frances, the ice cream changes in size and shape - not in the way one would expect, but rather haphazardly - as well as the melting around the cone, as the camera switches angle giving alternating POV between the two characters.
Continuity mistake: When Frances is 'spherically' pulling ivy from the outside walls of her villa, she drops a branch behind her just as she see the snake and says, "Oh, my God." The shot changes from her face to the snake slithering over a window sill into her kitchen. As this shot pulls back and moves up to show more of Frances, we see that she now, once again, has a large branch in her hand.Sheri Hartman
Continuity mistake: After Signor Martini tries to find the snake in Frances' house he lights the stove with a match. He then places the match box on top of the stove with the long side of the box facing the camera. In the next several shots the box turns to the narrow side facing front and then back again. (00:45:20 - 00:47:00)hgwalters