Continuity mistake: When Milo is walking with the ladder and trips, his hat falls off. The hat is couple of yards away from the spot where it first landed in the next shot. (00:37:10)
Visible crew/equipment: After blowing up the safe, when Andrew and Milo are trying to pry open the jewelry box there is a person standing behind the window looking inside. (00:45:00)
Visible crew/equipment: After Andrew and Inspector Doppler leave the mound of dirt and reenter the house, the camera moves to take a shot of Milo's car, which is partly hidden in greenery. As the camera closes in on and remains focused on the car, its shadow also moves onto and remains on the car. (01:29:20)
Continuity mistake: When Lawrence Olivier and Michael Caine are playing snooker, Olivier pots the black. There is then a wide shot, with the black visible again on its spot. The next shot is a close up of Olivier picking the black ball from the pocket and replacing it on the table.
