Continuity mistake: When Olaf suddenly stops his car when he is going to buy the Baudelaires some treats, it cuts to the back seat where Violet and Klaus bend forward as if it was a sudden hard stop. However Sunny is sitting completely still as if she isn't moved by the sudden stop at all. (00:22:35)
Continuity mistake: When Count Olaf leaves the car on the train tracks and heads for the shop while locking the car doors with his remote, you can see that the mannequin's stop sign in its hand is pointing to the left. But when it cuts to Olaf hitting the sign it is pointing towards the camera. (00:22:55)
Deliberate mistake: In the shot where the camera zooms in on the car, after they realise they are standing on a train track, it is obvious that the car would be hit by the train even if they managed to change tracks. The car's hood is parked right above the other track. (00:23:45)
Continuity mistake: When the Baudelaires realise they are stuck in the car Violet jumps over the seat in to the front seat. Two shots later, outside in front of the car, we can see her coming over the seat again. (00:24:05)
Audio problem: Trapped inside Olaf's car, Violet is in the front seat pushing all the buttons. She pushes the button that starts playing the tape, and the tape begin to roll. When it cuts, the tape suddenly runs the other way, but the music continues normally. (00:24:25)
Continuity mistake: When Violet launch the elf head at the train switching device, the elf head lands at least three feet away from the train tracks. When it cuts the elf head is lying right next to the tracks. (00:26:05)
Continuity mistake: While the Baudelaire orphans are trapped in the car, Violet makes the elf head spring forward to catch the track switcher. When she makes her successful attempt, the rope wraps around the handle only once, and the rope does not have the momentum to swing around again. But in the shot as the handle is getting pulled, the rope is wrapped around twice, and moved over a little bit. (00:26:20)
Continuity mistake: After Violet has managed to hit the track shifter with the elf tied on the rope, they begin pulling the rope. It cuts to a shot where we can see the entire rope attached to the shifter with a knot tied in the middle of the rope. When the camera zooms in on the train, in the shot before Count Olaf begin to laugh, the rope is visible and stretched out but the knot is gone. (00:26:25)
Continuity mistake: When the train is passing by the car Violet and Klaus are looking at it and smiling. When it cuts to Sunny clapping Violet and Klaus are suddenly facing each other. (00:26:55)
Continuity mistake: When the train is passing the car we get a shot from behind the car and we can see the car is wiggling. When it cuts the car has suddenly stopped to wiggle. (00:27:00)
Continuity mistake: When the train is passing right in front of the car the train signal to the right of the screen is on with a red light. When it cuts the light is suddenly off. It would never have been turned off until the last car of the train had passed. (00:27:00)
Continuity mistake: After the Baudelaire's almost were killed by the train while stuck in Count Olaf's car, Mr. Poe moves them over to his car to take them away. Then Count Olaf wants to talk to them and leans against the open car window with his right arm only. When it cuts he has suddenly both arms placed on the car. (00:27:50)
Continuity mistake: When Mr. Poe and the Baudelaires arrive at Uncle Monty's he has his snake twirled around his arm as he reach out to shake Violet's hand. When it cuts the way the snake is twirled around his arm has changed. (00:29:00)
Continuity mistake: When the Baudelaires arrive at Uncle Monty's and Monty says "We have to pack all the equipment" he has a snake whose head is over his shoulder. As Monty close the door it cuts and the snake's head is suddenly hanging down by his waist. (00:29:50)
Continuity mistake: When they enter Monty's reptile room the first time there is a lizard and two turtles walking on the floor. When it cuts the creatures have totally changed position. (00:30:05)
Continuity mistake: When Uncle Monty is telling about the Incredible Deadly Viper and he says "My assistant Gustav and I may be the only people who ever seen it", as he stops by the cage he has his hands up. When it cuts his arms are hanging down. (00:31:00)
Audio problem: When Olaf (as Stephano) jabs the knife into the door when he arrives, it makes a vibrating sound. But Olaf kept his grip on the knife the whole time. It wouldn't vibrate in the door. (00:36:05)
Continuity mistake: When Violet and Klaus are about to close the door in front of Stephano he rams a knife in to the door, and he even twist the knife a bit. This should at least make a mark. Later when Stephano asks if the kids can help him with his bags Violet turns around facing Uncle Monty. Now we can see the door and there is no mark where Stephano rammed the knife in to. (00:36:10 - 00:37:30)
Continuity mistake: As Uncle Monty comes and greets Stephano, Stephano says "Oops, you caught me being a mentor" while bowing down and lowering his arm. When it cuts from behind Stephano he is still standing and lowering his arm again without bowing. (00:36:25)
Continuity mistake: When Stephano first arrives it is fairly dark outside. But when Stephano runs back into the Reptile Room and says he really looked forward to the milking it is fairly light through the window. (00:38:30)
Chosen answer: On the beach, where Mr. Poe comes to inform them of the fire as the movie starts.