Continuity mistake: Indians are on a hilltop and a jet vapour trail can be seen in the sky.
Continuity mistake: When Blofeld gets thrown from the bobsleigh and gets his neck caught between the branches of a tree, he is caught under his arms in the long-distance shot.
Continuity mistake: The chain gang truck is an International-Harvester when it first pulls to the side of the road. When the guards open the hood, the truck is a Chevrolet.
Continuity mistake: When Cornelius meets the girl in the red dress and they dance and sing outdoors on the street, her dress is dragging on the pavement and the hem is clearly filthy. The next scene they arrive at the restaurant and her dress is clean and pressed.
Continuity mistake: At the end of the town collapse, a sincerely drunk Ben dives head-on into a tub where a lady (in her underclothes?) is just enjoying a bath. Propelled by Ben's momentum the tub with both passengers slides down the slippery planks and splashes into the river, while Ben rearranges himself into a comfortable sitting position between shots. If I wasn't completely mistaken also the lady changes her outfit, since the embroidery is missing when they float along. (02:23:35)
Continuity mistake: A party that is in full swing when Miss Brodie enters another room for her final confontation with Sandy has dispersed when she leaves only a few minutes later.