Corrected entry: When Kevin goes to the market, he had one pack of toilet paper in his cart and as he heads through checkout. In the next scene, it shows him walking home with two bags. You can see that there are two packs of toilet paper (one in each bag).
Corrected entry: The family checks in to a United Ticket Counter, yet they fly an American Airlines plane.
Corrected entry: In the scene at the end when Kevin runs down the stairs to meet his mom, his hair totally changes in the next shot.
Corrected entry: When Kevin pushed Buzz and spills the milk, everyone rushed over to clean it up. Fuller runs over and gets stuck between the chair and the wall. Kevin's aunt runs over to Fuller, and she's maybe five feet away when the scene switches. It shows everyone cleaning up the mess. That lasts for about ten seconds then the scene switches back to Kevin's aunt and Fuller. She just got to him and takes him out from behind the chair. What was she doing for the past ten seconds?
Corrected entry: When Kevin is running through the next-door neighbour's basement, there is a lot of water pouring down from the upper levels of the house into the basement (the burglar's had turned the taps on earlier on in the movie). Yet, when Kevin reaches the kitchen, the taps are turned off - where is the water supposed to be coming from?
Corrected entry: During the head count, Heather (the girl counting heads) counts herself twice-once at the beginning and then at the end. So even if Kevin was there instead of Mitch Murphy, there would still only have been 10 kids, therefore another kid had to have been missing.
Corrected entry: In the scene where Harry and Marv are in Kevin's neighbour's house, when Kevin's dad calls, Harry picks up the phone to listen to the message, and the phone is on the hook. It shows him listening, then he calls out to Marv, and the camera looks at Marv, then when it returns to Harry, the phone is off the hook.
Corrected entry: At the beginning, the mum is on the phone and right before Kevin jumps on to the bed, she was saying, 'No, we're not taking the dog, we're putting him in a kennel.' We never see a dog or any evidence of a dog in either this movie or its sequel.
Corrected entry: Despite what the airlines might tell you, there is no such thing as a fully booked flight - especially a long-haul flight like the one Mrs. McCallister is looking for. Two or three seats are always kept spare in case of emergencies (like this one) and, if not required, are given or sold very cheaply to airline employees. This practice is known as 'deadheading' and the staff in the U.S. Embassy in Paris would be well aware of it. One phone call from an embassy staffer and Mrs. McCallister would be on that flight.
Corrected entry: When Kevin orders his own cheese pizza and has it delivered, he has some fun with the delivery guy. He plays the video in which someone gets shot and killed. The pizza guy is obviously scared and runs away, believing that he is being shot at. Surely someone who thinks they have just been threatened by a gun would either call the police or investigate further. And if the police got a call of that nature, they would definitely check it out.
Corrected entry: On the morning that Kevin wakes up looking for his family, his hair changes in each scene and stands up straighter on top.