When Cameron is talking to the grief counselor, from behind, the strap of her bag is running diagonally across her torso, but when camera view changes to the front, it's hanging straight down off her shoulder.
At the end, Sarah says "The goal of a chess game is total annihilation." It is not. The goal of a chess game is to checkmate the opponent's King. This does not require "total annihilation". This can even with no pieces taken at all (known as 'Fool's mate').
In the scene when the T-888 is browsing the police network to find the information on Reese, the Network Disconnected system tray icon can be seen.
During the car chase it is obviously not Summer Glau (as Cameron) but a stunt person who crawls from the jeep onto the moving prison van and then hauls the guard through the window.
When Cameron beats terminator Vic with a metal pipe, the pipe is obviously made of a soft flexible material, not metal.
When the T-888 breaks out of its cell, it immediately goes to Derek's cell. Its unclear how the terminator knew which cell was his.
There is no explanation given for how Sarah Connor knew about Derek Reese being transferred to the FBI, nor how, when, and where Derek Reese would be transferred.