Other mistake: When the children run into Captain Sham (Count Olaf in disguise), Aunt Josephine says that the children will make them a meal of puttanesca. You need the stove to make puttanesca but Aunt Josephine would never let the children anywhere near the stove because she was terrified that it would burst into flames.
Continuity mistake: In the scene where Count Olaf starts walking from the balcony to the stairs, you can see his right hand when he is saying "lovely home" with no writing. Later when he looks at his hand to remember Violet's name, his hand has writing on it. (00:09:20)
Stephano: I've been bitten forty-three...seven hundred times. Mostly on the face. A lot of this has been reconstructed but I think they did a great job even though my moustach is a tad askew.
More trivia for Lemony Snicket's A Series of Unfortunate Events
Question: I'm still confused about something - what exactly was the whole point of the spy glasses?
Chosen answer: The spy glasses are not explained in the books, but it seems that these are symbols of the fact that they are in VFD, the secret organization we learn about later on in the series. Both Dr. Montgomery and Aunt Josephine's husband and brother-in-law, the Anwhistle brothers, are implied to have been a part of VFD.