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: At the flesh fair, when the little girl goes to her father to tell him that David is in the Mecha cage, on the monitors in the control room you can see the destruction of the robot who asked to have its pain receptors turned off. A few shots later, you see the robot still in the cage and then its actual destruction.
Correction: Since mecha are mass produced this could easily be explained by them having 2 of the same model to destroy that night.
Corrected entry: Why was everyone so sure that Gigolo Joe murdered his client? He's a mecha so they could have gone through his memory files and would have found out he didn't do it.
Correction: The movie places great emphasis on the fact that most orga (humans) hate/discriminate against mecha. If a murder happened on the bad side of town and the mecha was the last/only one seen entering the room then there would be no investigation, the mecha would be terminated or sold to a flesh fair.
Correction: The fallen buildings aren't the twin towers.