Continuity mistake: In the end of the film where Willy and Ted stand together in Ted's house, Ted says to Willy "See, you can't touch me, ever". The shot goes to Willy and you can see his finger off the trigger, yet in the close-up on the trigger you can see that Willy's finger is inside the trigger-guard and he pulls it out. (01:46:15)
Plot hole: *SPOILER* Toward the end of the movie, Ryan Gosling goes to Hopkins' house where Hopkins is tricked into not only confessing again, but giving Gosling the murder weapon, after they are back in court and Gosling is the acting prosecutor. This would be a conflict of interest due to the fact that Gosling is a witness.
New this week Plot hole: Flores tells Willy "It's no good as evidence, it's never been fired." He checks the paperwork regarding the gun purchase and tells Willy "it's property of the defendant, bought about one month ago." Since the gun found actually belongs to Lt. Rob Nunally, it should have been previously fired several times. Most law enforcement officers qualify with their sidearms once to six times per year. Even if it's a new firearm, Rob would have practiced using it after its purchase. It's unlikely that both firearms would be in the same condition even if they were the same model/caliber. An LA police detective would have compared the purchase document (showing the serial number) for Ted Crawford's gun with the actual serial number on the gun found in Crawford's house. In this case, they would not have matched and any detective would look at all guns that were in the house when Crawford was taken into custody. (00:31:00 - 00:31:30)Dr. Thomas
Lt. Robert Nunally: I warned you about him.
Willy Beachum: You warned me he was smart. You didn't warn me you were stupid.