Other mistake: When Wallace sees the meat mincer, he says 'Now that's clever', but on the English DVD, the subtitles say 'Now the fat's cooked'.
Continuity mistake: When Wallace is put into his overalls he's still wearing his green pullover. A moment later he suddenly doesn't wear it anymore but a complete white shirt. He couldn't have just taken off the pullover as the shirt under it is actually fake (The collar is actually part of the pullover and the arms are just stuck on).
Wendolene Ramsbottom: Yer dog's waiting.
Wallace: Aye, I'd better see to him. The bounce has gone from his bungee.
More trivia for Wallace & Gromit: A Close Shave