Factual error: The events in the movie take place in late January and early February during the winter. When the movie cuts to an outside shot of New York City, it doesn't appear to be cold or snowy. New York is often known to be really cold during this time.
Charlie and the Chocolate Factory (2005)
41 mistakes - chronological order
Directed by: Tim Burton
Starring: Johnny Depp, Christopher Lee, Helena Bonham Carter, Freddie Highmore, David Kelly, Missi Pyle
Willy Wonka: Everything in this room is eatable. Even I'm eatable, but that is called cannibalism, my dear children, and is in fact frowned upon in most societies.
More trivia for Charlie and the Chocolate Factory
Question: If the Buckets were very poor, then why do they even have TV? Why don't they use the extra money for food?
Answer: TV is kind of a necessity. Here in the UK debt collectors can't take a TV if it's the only one in the house. Also, they can't afford newspapers so how would they catch up on news? The TV will last for a while whereas it would only buy a few days worth of food, so the TV is a more sustainable option.
Answer: In addition to the other answer about TV basically being a necessity, there's also the very real chance that they got the TV for dirt-cheap or even free somewhere. It looks like a crummy old antenna TV anyways. They often get old TV's in things like thrift stores or flea markets, etc. I actually specifically look for things like old TV's and VCR's in thrift store and find them a lot since I enjoy collecting old analog media and devices. Plus, given that the grandfather used to work for Wonka, it's entirely possible that he bought it in the past before the family became so poor.
Answer: Don't they have to pay for a monthly subscription? Isn't cable paid for every month?
This was based on the book, not the timeframe of the movie. There was no cable for TVs when the book was written OR in the 1971 original film. Yes, cable was available in 2005 at this film's time but that's not the logic here.