The Man in the White Suit

Continuity mistake: When Mr. Harrison is called by a woman because he is wanted by Mr. Corland, he is blowing into a glass vial on a side counter which was not there in the previous shot. (00:07:45)

Continuity mistake: During the chase scene a man with a cap and a white suit leaves the baker's and gets chased for a while, during which his cap falls off. You can see the thread/string illuminated in the light which pulled the hat off.

Sir John Kierlaw: Now. Some fool has invented an indestructible cloth. Where is he? How much does he want?

Mrs. Watson, Sidney's landlady: Why can't you scientists leave things alone? What about my bit of washing when there's no washing to do?

Daphne Birnley, Alan Birnley's daughter: Thank you Sidney. If you would've said "yes" I could've strangled you.