When Luther goes into Red's Bar, he opens the door and enters the bar from the street. The next scene, inside the bar, shows Luther entering the bar again from the street. The door has changed from a solid door to one with a diamond-shaped widow in it.
When Luther's daughter is reading the newspaper, the headline story about the murder, and the story about the jewelry theft have identical text, even though they are different stories. The newspaper text contains nothing about the murder or jewelry theft. In fact the story seems to be about a city council or Congressional hearing.
When Kate and Seth are outside Luther's front door, the shutters on the security door are wide open. After going through the door, the shutters are completely closed.
When the Secret Service agents are attempting to push Kate off the cliff, the license plates on the suburban are Washington, D.C. official plates. Normally, the Secret Service would be operating a vehicle with US Government plates if it is an official vehicle, or regular plates if they were undercover.
When Seth Frank introduces himself to Walter Sullivan, he tells him he is from Middleton County. But, there are no counties in Washington, D.C. where Seth Frank is stated to work for the Police Department.
The manor that Luther robs is only three stories high, yet he walks up four flights of stairs to get to the safe in Christy Sullivan's bedroom. That's because the floors are high and there is more than one flight of stairs between two floors (at least three).
As Richmond attacks Christy Sullivan at the beginning of the movie, he rips her dress. While her dress is intact later, this may have been part of the damage control by his team.
When Luther puts the VCR tape in the machine it is at the end of the tape, but he plays it without rewinding.
When Luther is in the airport bar watching the President and Mr. Sullivan on TV the cable TV jack can be seen to the left. The jack is empty, with no cable TV wire attached to it.
While Leland is making a telephone call the line is ringing, but he is still dialing numbers.
When the special agents of the US Secret Service are pushing Kate off the cliff, a mechanical device is seen clearly pushing the car over the cliff.
When Burton and Collin are chasing Whitney through the woods, a shadow of the camera is visible in the trees behind them.