Corrected entry: Just before the final court appearance, detective Nunelly has the bullets in the evidence room swapped to match a planted gun in the shed under the lawn mower at Ted's house. At the end of the movie, Willie says that since Ted has killed his wife by removing life support he can now access the bullet in her brain and it will match the detectives' gun. So now he can prosecute him for murder, but there is a problem. It won't match because the bullets were swapped by the detective's friend who works in the evidence room.
Corrected entry: Anthony Hopkins' entire scheme is based on the exact LAPD officer who is having an affair with his wife being the single officer who enters his home to arrest him. Per the LAPD website, on 08/29/08, there were 9753 sworn officers in the LAPD. Wrong officer responds and the entire scheme fails.
Corrected entry: Crawford shoots his wife and then fires 4 shots through the glass. But throughout the movie there are only references to 4 shots being fired and 4 shells being found.