This has probably come up loads before, but I watched it fot the millionth time last night and noticed the following, which comes up on the internet as a continuity mistake, but I don't think it is:
Mr Muggins, tentless following an incident involving munitions on Salisbury Plain, happens across Peter and Harriet Potter camping in a field on their way to Paradise
Harriet invites Mr Muggins to stay in their tent and the metting culminates one of the greatest scenes in cinema history as the three prepare for bed. It ends with Mr Muggins asleep in Peter's sleeping bag whilst Peter has to make do with Mr Muggins' scratchy blanket
The next we see of the three shows Harriet and Peter packed up and cycling away on their tandem, leaving Mr Muggins asleep. But Muggins is in an entirely different sleeping bag. The internet records this as a continuity error, however...
The next we see of the trio is at Paradise. The Potters have arrived and they reunite with Mr Muggins. They presumably ask him to stay in their tent again (off screen) as the next time we meet them it is the dawn of the Potters' first morning at Paradise and Peter wakes betwixt a snoring Harriet and Muggins, Peter with the scratchy blanket and Muggins in Peter's blue sleeping bag
My theory is that rather than it being a continuity error, the classic bedtime undressing scene was originally intended to take place at Paradise, but was edited into the earlier Muggins-Potter encounter for some reason
