Visible crew/equipment: When Gustav is interviewed by a lot of journalists watch the window on the car and you'll notice a round screen used for lighting. In the opposite shots none of the press members holds one.
Continuity mistake: When Bond saves Jinx from the flooded room his hair changes from wet to dry then wet again when he gets her out of the car.
Factual error: The invisible car cannot possibly work as it is described in the film, by projecting an image of things that are 'behind' the car onto the side that is being viewed. This ignores parallax effects - the things that are 'behind' the car change, depending on the distance and angle from which the car is being viewed. Two people standing next to each other, on the same side of the car, would need to see two entirely different images projected.
Audio problem: When Bond meets M at the underground station, he walks through a door and turns slightly to his right. Cut to the platform as Bond walks towards M - we hear a door close behind him, but there is no door behind Bond when he is on the platform. This scene starts as he walks towards the arch on his left - no door there either.
Continuity mistake: Just before the hovercraft smashes through the gate, the hovercraft that was overturned in front of it disappears.
Continuity mistake: All three surfers at the start are bare footed, but once on the beach and after, they have footwear - in a supposedly continuous scene.
Revealing mistake: When Bond climbs onto the bigger hovercraft, the smaller one overturns and you can see it's an obvious dummy sitting in the back.
Continuity mistake: When Jinx takes a sip of her drink, Bond says to her, "Too strong for you?" and you can see takes the glass away from her mouth, but in the next shot she is holding the glass close to her lips.
Continuity mistake: When Bond and Graves are fencing, the amount of blood on Bond's nose increases or decreases randomly between shots, without any logical order.
Character mistake: Graves tells his people to kill Bond quietly (he doesn't want the party guests to know what's going on). So they fire at him with machine guns and try to mow him down with the Icarus beam?
Answer: By this stage, it's become a habit.
J I Cohen