Revealing mistake: Midway through when Ian Carmichael and his girlfriend are dining at a restaurant with Terry Thomas, they are talking and looking at the menu. The table is laid with cutlery and wine glasses - ready to eat. During their conversation there is a shot of Ian Carmichael only talking and smoking but there is no cutlery and the wine glasses have been replaced by a brandy snifter, obviously after the meal. The next shot shows the whole table with the correct pre-meal setting. When they have finished the meal, the table setting is as it was in the earlier shot.
Continuity mistake: When Palfrey is being shown the Austin Healey, the salesman lets him in on the passenger side and he slides across to the driver's seat. In the next shot the salesman is standing on the driver's side.
