At the beginning when Bond drives out on the beach, a ship can be seen in the distance against the raising sun. During the fight,the sky is stormy and the ship is no longer visible.
After Irma Bunt sees the girls off in the van, a car with 3 Blofeld henchmen pulls up. They honk to her and the man riding shotgun gets out and lets her into the front passenger seat. He gets in the back. But in the next shot of the car's occupants, Bunt is in the back with a man to her left and one in front of her.
When Bond is locked in the cable car machinery room, the cable car travels down and is shown stopping at the support tower, but the next shot shows the car at the base station (note PRIVAT ENTRITT VERBOTEN sign). The car then leaves the tower and arrives at the base station again.
During the helicopter attack one helicopter suddenly shifts position. This can be seen when the tail shifts upward about 15 degrees.
When Bond meets Blofeld for the first time Blofeld starts to undo the buttons on his jacket. When we next cut back to Blofeld, his buttons are all done up.
Bond orders a Dom Perignon '57 in the casino, but a '57 wasn't released for that year, nor for the '56 or '58.
The nail file used by the second girl (and subsequently Bond) to short out the electrical contact on the doors would not work. It is clearly an emery file which is made of paper and aluminium oxide, the latter being an insulator.
Loud noises do not cause avalanches as is shown. Sound waves generally lack the power to dislodge large volumes of snow; they are usually caused by the weight of rapid snowfall breaking a weak support underneath.
Bond first sees Tracy through a "rifle sight" that starts off as a telescope, then somehow zooms out to a wide-angle view. This can only be done with a camera.
The helicopters hover unharmed around the research lab throughout the extended gunfight, despite these aircraft being very vulnerable to small arms fire.
During the stock car scene, when one car gets flipped, there is an in-car POV from the upside-down stock car. However, one can see that the shot is really a conventional reaction shot of the driver inverted in the editing room by the fact that the background and spectators are also upside-down.
During the helicopter assault on Piz Gloria one of the commandos throws a grenade landing on the veranda. He throws it underarm - an impossible distance - and directly through the helicopter's rotor blades.
At the end of the first ski chase, in which Bond ends up on one ski, he nearly goes over a cliff edge. As he pulls himself back, a thin safety cable can be seen attached to his ankle.
Immediately after the ski chase, a rear shot of the baddies' Mercedes is shown in reverse, as clearly seen by the letters CH (for Switzerland) being backwards.
When the three helicopters are attacking the Piz Gloria and are about to land pay attention to the helicopter on the far right. It fades out and fades back in again on the landing pad. At the same time on the left side a helicopter fades in.
Draco says Over and Out when ending his radio conversation with the air force from the helicopter but the 2 words are never used together. Over means I have finished but I am expecting a reply. Out means I have finished and expect no reply.
Just after we see the train for the first time in the Swiss ski resort, a man with blond hair is reading the Daily Express. On the back page, the headline is 'Why Brown had to go' and above this is written 'Stock steps in at Luton'. Allan Brown was fired as manager of Luton Town FC on 17th December 1968 and Alec Stock was appointed to the position three days later. However, the three letters we see Bond photo stating in Gumbold's office in Bern are dated 12 June, 30 July and 3 August 1969. Therefore, the newspaper being read in Switzerland may have been dated one year or more prior to the date we could suppose that we are observing the man reading it.
Bond's Aston Martin's tires screech repeatedly on the loose sand of the beach. And during the later car chase, tyres screech almost all the time when cornering on snow and ice.
At one point, Tracy kisses her father goodbye, yet we hear her voice continue to speak clearly.
After the fight at the beach near the beginning of the film, the girl leaves Bond and he says "This never happened to the other fellow." His mouth appears to be saying something different.
When the skier falls into the snow-blower, there's some poor editing. The blood and guts seem to start coming out of the snow-blower before the man even falls into it, and his screaming continues to be heard after he is dead.
Bond's mouth is full of food, when he says "Mmm Royal Beluga, north of the Caspian" but he doesn't sound like he has anything in his mouth when he says it. Obvious dubbing.
In the ski chase sequence, when Bond falls near the cliff edge, a black rope holding him secure is visible.
The barn with the two ponies is clearly down in a valley, with metalled roads and the possibility of a post-office, yet when they leave on skis they're way way up among the snowy peaks.
Bond is taken from his hotel in the morning to be driven to Draco's house, arriving as it's getting dark. However, the days aren't short in mid-September; and since Corsica is only 133 miles long, no car journey would take more than a few hours.
When Bond and Tracey are driving along the cliff-top after their wedding they are driving on the left side of the road, where this supposedly being Corsica (though actually filmed in Portugal) they should be driving on the right hand side of the road. They are even overtaken by a group of English people in an old car on their right side, as though they were all back in England.
Bunt says Grunther will escort Bond to dinner his first night at Piz Gloria at 7 PM. When Bond arrives at the Alpine Room, however, the sun is shining and the sky is blue. In Switzerland at that time of year the sun would have set nearly three hours earlier.
Bond and Tracy's wedding is presumably in the new year, 1970 (as much happens after Christmas time). Yet at the beginning of 'For Your Eyes Only', it reads (on her gravestone) that she died in 1969.
Like many film series, the timeline is slightly inconsistent. In 'You Only Live Twice', one newspaper states the year of it's setting is 1966. However, in this installment the year (on a calendar seen and on documents) is 1969 and M states that Bond's been hunting for Blofeld for --two years. (This is unless if Bond encountered Blofeld again sometime in the year after the events of YOLT).
Locking up a highly trained and intelligent agent like James Bond in cable car's machine room was an invitation to very sophisticated sabotage to a primary mode of safe transportation.
Everyone seems to concede the film takes place in 1969. However, when Bond meets Draco he tosses a knife into Wednesday September 14. Draco confirms the accuracy of the calendar by saying "but today is the 13th." The calendar is the Julian calendar for 1967. Blofeld later confirms the year by referring to England's 1967 outbreak of hoof and mouth disease as taking place "last Summer."
When Bond is at Piz Gloria posing as Sir Hilary Bray, he mimics his voice (dubbed in post-production). There is no need for this as Blofeld had never met Bond (a retcon from You Only Live Twice (1967)) nor Bray before.
The sign on Gumbold's door reads "Advocaten" when the correct Swiss German spelling is "Advokaten".
An allergy is not a feeling of disgust or revulsion towards something as described in the book and movie - it is an immune system reaction which can be fatal in some people. Eating the food you are allergic to would still cause the reaction, even if you had already been hypnotized beforehand to believe you enjoyed it. Ruby and the other girls don't understand this.
Hypnotically following Blofeld's every instruction to the letter, the ladies of the world are each given a special compact, wherein opening the case to see its mirror allows an aerial to extend when a volume control is adjusted. Blofeld mistakenly orders the women to push the mirror back to conceal the receiver, then close the case - but instead, on their own initiative, they first move the aerial back inside.
When Bond has a bit of beluga caviar in Tracy's room he uses the knife provided. A metal knife. Metal utensils are never used with caviar.
Blofeld fails to recognize Bond, even though the two met face-to-face in the previous film, You Only Live Twice (1967). (The original script for OHMSS began with Bond having his face altered via plastic surgery to explain the change of actors. This idea was dropped, but in doing so it created this continuity error later in the film.)