Continuity mistake: When Bond arrives at Shrublands the butler passes by the columns towards the car. Shot changes, and he is meters behind walking towards the columns again. (00:06:35)
Continuity mistake: When Bond enters the room to free the woman there's a chair next to the bed. A shot later it's a meter away. (00:03:40)
Revealing mistake: During the credits, Bond grabs a rope and jumps inside a house. His stunt is way younger than him and very noticeable.
Revealing mistake: When the movie begins Bond climbs up a telephone pole. From behind he is obviously not Sean Connery: not only his build is different, but his hair is a weird squared wig, maybe some sort of security helmet.
Continuity mistake: Bond throws a grenade at two guys playing chess. The deck of cards next to them disappears in the aerial angle but reappears in the close-up.
Visible crew/equipment: When Bond arrives at Shrublands the moving boom mic's pole is reflected on the car's windshield.
Continuity mistake: The first time we see Blofeld he is touching the cat's head. A shot later his hand is on the cat's body.
Continuity mistake: The nurse asks Bond for a urine sample and tilts the beaker forward. A shot later it's tilted towards her.
Continuity mistake: During the credits, after Bond knocks out a guy in a terrace his hat is either close to his head or away depending on the shot.
Visible crew/equipment: At the star of the motorbike chase the camera man is in the motorbike wing mirror several times, and he's wearing a completely different type of helmet as well.
Revealing mistake: Small black ramps are against the kerb for the stunt rider to use to mount the pavement during the motorbike chase.
Continuity mistake: When the horsemen arrive to where Domino is tied up, the watcher has a cigarette in his lips, but it appears in his hand in the following shot. (01:44:25)
Revealing mistake: When Domino and Bond escape horseback riding, a man fires a rifle, but no smoke comes out despite the bang being heard. (01:47:07)
Revealing mistake: When Bond rescues Domino from being sold, and she hops on the horse, Kim Basinger is replaced by an obvious stunt.
Continuity mistake: Domino grabs the pendant with her hand positioned sideways. In the close-up, the palm of her hand is face up. Then it swaps to the previous position.
Continuity mistake: When Nigel falls in the water, his hairstyle changes between shots. Sure there's a two seconds shot in between, but that would mean that Nigel had that short lapse to let go his suitcase, bend his head backwards, comb his hair and grab onto his suitcase again... Impossible.
Revealing mistake: During the shoot-out, all the baddies' heads and hands are bare, except for the one that gets burnt alive, who wears very obvious fireproof hood and gloves.
Continuity mistake: When Bond exits the tunnel 2 workmen gather on the right side. A shot later one of them is now on the opposite side.
Continuity mistake: When Largo introduces himself to Bond the toothpicks on the counter disappear.
Continuity mistake: During the massage, Bond and Domino talk about Mr. Largo. Behind them is a woman who stands up and leaves, leaving the place empty. Shot changes and the place is suddenly packed with women. (01:02:07)
Chosen answer: Neither is a professional dancer. Having studied dancing some thirty years before does not mean someone has retained the same level of skills. As you mentioned, Connery was in his 50s by that time.
raywest