Continuity: The pile of clothes that falls onto the remote control car changes between shots. The hamper turns over as well.
Great sites
Mistakes
When the remote control car that was spying on Beaupre is found, the car goes off and spins on some water in the kitchen, and you can see the laundry basket with a pile of clothes in it. When Beaupre then runs into the room, the pile of clothes is now much different. See more...
Home Alone 3 mistakes
Continuity: After the trunk of books has fallen on Beaupre and Unger, Unger leans upright and has a blue book on his chest. When it cuts the book is light brown.
Continuity: Alex rings the bell to get his Mom's attention and the box's position changes between shots.