Revealing mistake: When Charlie and Grandpa Joe drink the fizzy lifting drink and are floating in the air you can see the hook that is connected to the wire that Charlie is being held up by.
Willy Wonka & the Chocolate Factory (1971)
Trailers
Directed by: Mel Stuart
Starring: Gene Wilder, Jack Albertson, Roy Kinnear, Julie Dawn Cole, Peter Ostrum
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Mr. Salt: What is this, Wonka? Some kind of fun house?
Willy Wonka: Why? Having fun?
Trivia: Of all the child actors who played main characters in this film, Julie Dawn Cole is the only one who continued to act into adulthood.
Question: How did Willy Wonka know that Charlie and Grandpa Joe had stolen Fizzy Lifting Drinks? The entire time they were in the room they were completely alone and security cameras obviously didn't come into existence at the time.
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Answer: Closed circuit security was invented in 1942 and came into common use in the late 60s and early 70s. Beyond that, Wonka could have had Oompa Loompas monitoring the group or simply noticed that they were gone and guessed.
Greg Dwyer