When Albert visits Harland butchers, the lady in the hat jumps forward in her queue position between exterior and interior shots.
When the doctor and Harold are discussing an autopsy on Albert, the greyhound fully pulls out the manikin's arm. However next scene the arm is still in Albert's sleeve.
Harold falls asleep on the cart and the horse pulls it into the back of a furniture van. The men close the ramp and doors without seeing the cart. When Harold's eventually let out there's a red chair on the cart, which wasn't there before and has disappeared before reaching home.
When Harold tells his dad that Hercules The Second ran away at Acton Park, Albert's pigeon-chewing varies from shot-to-shot.
When Harold goes into Albert's room to verbally abuse him about signing over the life insurance policy to his girl friend many years ago, the door swings wide open. When Harold closes it to stop the guests downstairs from hearing, the door is only partially open.
Although the throng watching the filming of the funeral cortège could be said to just be interested onlookers, the same cannot be said for the ragged-trousered boy waving directly at the camera.
At the hospital, the doctor says to Harold that he needed 10 stitches. However there was no cut or blood on Harold's face from being hit with the truck's door.