When John takes Ann in his arms on the terrace, she drops her cigarette. As they go back inside, she still has the cigarette in her hand.
When Major Pollock is handed the newspaper at the end, it is folded in half in one shot but folded in fourths in another. The evidence being that the picture on the back 'half' is upright. If it were in half, the picture would be upside down.
The same story headline can be seen in two days' editions of the Hampshire newspaper that reports the court case of Major Pollock.
Much of the conversation between Ann and John on the balcony has mismatched audio due to looping recorded at slightly the wrong time versus the video.
The camera is reflected in window in the last dolly shot.