When Hill confronts Ro in the car after their dinner, Hill raises his fist as if to hit Ro. In one part of this scene (1:16:40 DVD) you can clearly see the boom mic reflecting in the passenger door window behind Ro.
When Miles is talking to Rowena on the phone, after she sent him the secret laptop audio transmission of Senator Sachs, a woman with long hair and eye glasses walks past his desk from the far left of the screen. When Miles stands up, the same woman goes past his desk, again from the far left.
AS Rowena is dressing to go out, she selects and dons frilly black thong panties. In the next shot, as she bends over to pick up her shoes from the closet, the outline of full-bottom briefs can be plainly seen through her dress.
Just as the phone numbers said and shown in movies are almost always fake and non-existent(so that real people do not receive calls from moviegoers making the movie itself a liability)- so are the 'IP addresses' shown - Miles is hacking into Harrison's "blade server", and a list of IP addresses appears on the screen. The addresses are incorrect. An IPv4 address consists of 4 numbers separated by dots. Each of those numbers can be 0-255. But most of the IP addresses shown on the monitor have at least one number over 255.
Miles is supposedly searching Harrison's files for a picture of someone named "Veronica". Two screens of information are shown to illustrate this. The screens have nothing to do with searching for a file. The first is a screen of "fdisk", a Linux program for formatting partitions. The second looks like an FTP log, which appeared earlier in the film as well.
After Ro and Hill leave the restaurant, when Hill is going to confront Ro with the text message he read on her phone, the car they get into has twin-spoke rims with 7 spokes. The car that stops under the bridge has rims with 10 thin spokes.
It would be impossible for Rowena to "transmit" the conversation with Senator Sachs to NY due to the fact that Rowena did not have an internet cable plugged into her computer and would not have access to a wireless connection in the senate building.
The goof item below may give away important plot points.
At the end of the film when Rowena stabs Miles with the kitchen knife, she uses an underarm thrust, and Miles whinces as though hit in the stomach. However, the knife is shown clearly high in the chest at an angle from an overarm thrust.