Corrected entry: We all know that Martin (the real son of Monica and Henry) has been dead and frozen for 5 years before he is brought back to life. How is it that after only 1 month of being home and alive, Martin manages to have 15 friends at his birthday party who all seem to know him pretty well? How and when did they meet him?
Corrected entry: When David "eats" the spinach, how (and why) did the designers come to leave a clear path for it down into the electronics of his torso? Besides which, if his interior is waterproof, as we know it is, why does spinach fritz him out?
Corrected entry: The skyscrapers seen protruding from the water, just wouldn't still be standing. The weight of water pressure and corrosive rust damage to the foundations would have undermined and toppled them. The last scenes are even sillier 2000 years later the buildings are still there! Despite the fact that the extremes of low temperature would have rendered their entire structure brittle, not to mention the crushing effect of countless billions of tonnes of (possibly drifting) ice.
Corrected entry: Near the end of the movie, the robot child David blows out the candles of the cake he baked with his mother, recently cloned by the "aliens". The fact that David has no lungs is made clear earlier in the film when he needs surgery after eating. (02:14:15)
Corrected entry: Gigolo Joe tells David that he has enough money to ask Dr. Know seven questions. He then puts two paper bills into the machine, then a coin. Dr. Know doesn't appear until Joe puts the coin in. The mistake is that Dr. Know should have appeared as soon as there was enough money to ask any questions at all. How does the machine know in advance how many questions are going to be purchased?
Corrected entry: After the little girl convinced her dad to let out David, David leaves with the other robot and Teddy. When David is let out of the cage, he runs to the exit with the other robot and the little girl is still holding Teddy at the cage, so how could the Teddy get to the exit fast enough to find the both of them when the girl is still holding him?
Corrected entry: The metal wire hooked to Gigolo Joe's body that lifts him up to the helicopter is visible in the scene where he says goodbye to David, most noticeably right before he gets lifted up.
Corrected entry: If the whole idea behind the child "mecha" was for loving couples to be able to have a "child" despite not qualifying for a parenting license, how much sense does it make that all the boys and all the girls made by Cybertronics look alike and have the same name? It would make more sense for child mechas of all different appearances, shapes and races to be made (just like Mattel did with the Cabbage Patch dolls in the early/mid 1980s).
Corrected entry: Before Martin's father is allowed to take home David, he is explained the careful selection process that Cybertech had to go through to make him the ideal candidate to be the first one to adopt and test-market it (reasonable - this is a process all companies observe when a new product is ready for test-marketing). Then what happens? The prototype "David" breaks from eating spinach, nearly injures Monica with scissors, nearly drowns Martin, and causes so much strain on the family that they had to dump him along the side of the road. Just a couple days later, David finds his way back to the company and we see a bunch of "David's" in boxes, ready to be sold, and dozens more being constructed. Any kind of manufacturing company that comes up with a new prototype of a new product takes very seriously the data obtained from the studies of those test-marketing the product. Given all the problems, especially the safety issues presented by the original David, there is no way the company would go ahead and manufacture more without putting some serious time into correcting these flaws.
Corrected entry: In the pool scene, the boys are playing volleyball in chest deep water for a 10-12 year old child. When David pulls Martin in, it is way deeper than that, as you can tell, because several grown men dive in to save Martin, and they are totally submerged when they do.
Corrected entry: When Monica is prepared to read the 7 words, one time she has the paper in her right hand, and in the next shot, the paper is in her left hand.
Corrected entry: Doesn't it seem odd that the Police aren't overly interested in recovering their hovercopter? It stands to reason that it has a GPS locator or similar in it, then surely someone would come and get it when it was trapped underwater at that amusement park? They must cost quite a bit of money, and the Police certainly wouldn't want a robot loose with one.
Corrected entry: In the movie, none of the robots blink. Yet in the scene with David and Gigolo Joe in the woods in which he is explaining what he will do with the Blue Fairy once he meets her, David blinks. Watch David's eyes. (01:21:55)
Corrected entry: When David goes to Manhattan, he flies under the World Trade centers, where one has fallen into the other. 2,000 years later, when the robots are travelling to see David, they are standing above the ice perfectly.
Corrected entry: How is it possible that David can't take go to the toilet, can't bleed, can't eat, but he can cry real tears?
Corrected entry: Most of the film happens at a time when Global Warming has melted the polar ice caps, leaving New York well below sea level. When they freeze again during Ice Age over the next 2000 years, wouldn't the oceans have receded? Instead, the sea level remains where it was, only with the surface frozen over.
Corrected entry: Even though David is a robot, his carotid pulse can clearly be seen throbbing on the left side of his neck during the scene in which he was talking to his brother.