What's the Matter with Henry - S7-E6
Revealing mistake: In a close-up shot, Henry is very dusty, and fingerprints can be seen on his smokebox.
Thomas the Tank Engine & Friends (1984)
1 mistake in What's the Matter with Henry
Starring: Alec Baldwin, Michael Brandon, Ben Small, Martin Sherman, Michael Angelis
Bill and Ben: We're not playing. We're rescuing our trucks.
Trivia: The events of this episode were remade in CGI for the 2015 special, The Adventure Begins.
Question: Why was Henry put on a barge instead of being taken to the works?
Answer: He was in the water.