Corrected entry: After Scrooge's "change of heart", he runs into Mr. Poole and Mr. Harking on the street, and tells them that he would like to make a donation. Then he whispers into Poole's ear. Poole looks astonished, and quickly bends over to whisper the amount into Harking's ear....but Harking's facial expression changes to surprise even before Poole begins talking.
A Christmas Carol (1984)
1 corrected entry
Directed by: Clive Donner
Starring: George C. Scott, Frank Finlay, Edward Woodward, Angela Pleasence
Revealing mistake: When Bob Cratchit takes Tiny Tim by the town square to watch the boys play, you see many boys "sliding" on the ice. In the close-ups of the boys you can see the "ice" ripple beneath their feet, revealing it to be some sort of plastic.
Tiny Tim: God bless us, everyone.
Correction: He has just twigged as to what is going on - the world's tightest skinflint is making a charitable donation. He is expressing surprise at the event - the details which come later don't make much difference.