Revealing mistake: Out of ideas, Willy rummages through Jennifer Crawford's belongings and finds an old copy of Dr. Seuss' "Oh, the Places You'll Go." It's a teal hardcover book with the front recognizable because of the cover picture. Later on, a sleepy Willy is surprised by the doctor as he reads the book to Jennifer. He closes it, and it has the splint on his right side, no cover picture. You don't get a good view of the other half of the book, but if he was reading it, he was then doing it while holding it upside down. (01:03:55 - 01:04:50)
Revealing mistake: Willy is poolside at Crawford's when Detective Flores tells him the negative outcome of the umpteenth search for the gun. Gosling is waiting for the news with his hands crossed behind his neck, his big wristwatch on display, showing that the filming happened around 11am, and it is colour filtered to make it look like it happened later in the day. (01:02:50)
Revealing mistake: In one of the most memorable moments of the movie, Hopkins' character trolls Gosling's, gesturing him to fix his bowtie (and will get his comeuppance at the end). When Gosling does that, the arms of his wristwatch show it's around 1 PM, while the court proceeding is supposedly taking place at 3 PM. (00:25:20)
Revealing mistake: As Jennifer Crawford drives past the gate of her residence (a private home, the real-life Sherman Residence, which then became the real house of Alyson Hannigan), she drives past a sign that says "Lobby Parking Lot Full." (00:07:45)
Answer: Crowford (Hopkins) shot his wife with the gun that belonged to Nunally (Burke), but switched it with his at a moment of Nunally's distraction. The gun that the police mistakenly collected was not the murder weapon. This was a key plot point. Crowford goes on to gloat about it near the end of the film, saying the one piece of evidence Nunally needed was on his hip the whole time.
FleetCommand