Continuity mistake: When Annie and Laurie leave the hardware store to go to their babysitting jobs it is broad daylight. When they reach the houses apparently just a few blocks away, it is already dark.
Visible crew/equipment: There's a scene in which someone goes into a phone booth to make a call. As the phone booth door closes you can see a reflection of the cameraman.
Continuity mistake: In the scene where Bette Davis has lost her shawl there is a shot of her and Maggie Smith from far away. They talk about the time and in the background Angela Lansbury is drinking. She puts down her glass and leans her head on her hand. Then the shot changes to a close-up of Bette Davis and Maggie Smith and you can see Angela Lansbury in the background, with the glass in her hand, just about to take a drink. (00:55:05)
Continuity mistake: Spoiler: At the end of the film, Faye Dunaway shoots Tommy Lee Jones. He falls to the floor dead. The positions of his coat and tie change between shots.
Other mistake: After David Warner kills a man with his long thin sword, he pulls the sword out and puts it back in its scabbard, but there's no blood on the sword or anywhere.
Revealing mistake: A car is driven off a dock into a body of water. Before the car hits the water, special effects shoot up about 10 different blasts of water.
Other mistake: As the police lift the body of the 'dead' hotel clerk from behind the desk, you can see his eyes look around a bit.
Visible crew/equipment: When Dr. Wheeler is leaving the Jefferson Institute after talking with the nurse, you can see someone reflected in the glass door holding a book or some papers.
Visible crew/equipment: When Gene is on top of the coaster at the amusement park, you can see a cameraman below filming.
Continuity mistake: Though Fausto Zoppi and Jean-Claude Moleno are to have contributed to the 'World's Most Fabulous Meal' for the Queen, neither of them ever shows up in the kitchen during the preparation of the dinner. They don't even appear until much later in the film.