Continuity mistake: Truly crashes into the pond three times: first when the kids are playing in the road and she takes them home, second on the day of the picnic when she says she has nothing else to do and will go on the picnic too, and third at the end of the film when Potts finds out he is rich. In the second of these three, when Mr. Potts carries Truly from her car in the pond, the end of the ribbons on the back of her dress gets soaked in mud, but when you see her again at the beach there is no sign of the dirt.
Other mistake: In the scene where Walther Matthau is making sandwiches for his poker pals (during the movie's first poker game), Matthau drops a loaf of bread on the kitchen floor. If you look at his hand, you'll see that he flicks his thumb to make the loaf of bread fall.
Continuity mistake: Hrundi is watching Bill Kelso and his lady friend playing pool. As he watches, note that all of the pool balls are in the corner of the table. Hrundi then talks to them and becomes friendly and gets Kelso's autograph. Then, during the scene suddenly all the pool balls have changes their position and they are now spread out instead of being in the corner. Nobody moved them and nobody shot the balls.
Visible crew/equipment: During the long car chase, after Freya tells Matt that he's an awful driver Matt makes a sharp right turn and the car chasing them stops short, and when they back the car up we can see the reflection of a crew member wearing a hat (perhaps the cameraman) on the car window.Super Grover
Continuity mistake: During the song "Hey Bulldog," before the song starts the dogs are on a leash barking. When the song starts and the dogs stop barking, the leash disappears.
Factual error: The film tells the stories of five male/female couples. They have conflicting aims in their relationships. For example, one wants to become a parent while the other does not want children. Thus they all obtain supplies of contraceptive pills (in bottles) and re-label them as aspirins or vitamin tablets (or vice versa) depending on whether they want pregnancy or not. The bottles get mixed up, causing panic and anxiety for all involved. All the interlocked stories are based on a complete error. Contraceptive pills are not stored in bottles. Contraceptive pills are packaged in 'blister packs'. This basic fact makes a nonsense of the entire film.Rob Halliday