Corrected entry: Willy Wonka says the reason he sent out the tickets was because he needed a child to run the factory. However, there were many adults trying to find a ticket. All five ticket winners could've easily been adults. So his plan could've very likely failed, and he could've easily been forced to give the factory to an adult, even though he said he wouldn't trust one.MikeH
Corrected entry: In the Chocolate Room, there are several see-through pipes coming out of the chocolate. The chocolate is supposed to be being sucked upwards in all of them. However, in some of the pipes it is actually flowing downwards, since it was easier for the film-makers to only pump it upwards in some of them and then send it into the other pipes to go back down. This is confirmed when Augustus Gloop gets stuck in one of the up-pipes - there is no chocolate at all flowing in one of the down-pipes while he is stuck in there.
Corrected entry: When Mr. Turkentine asks for Charlie's help with an experiment, he states that two of the main ingredients he would be using are Nitric Acid and Gylcerine. He then goes on two mention that when poured in equal amounts would create a very powerful wart remover. In truth, Nitric Acid and Gylcerine when mixed together actually creates Nitroglycerine, a very powerful liquid explosion and creating it in a classroom is criminally irresponsible.
Corrected entry: After Charlie finds the last ticket, "Slugworth" stops him to make an offer. As he talks, he mentions a better home, good food and comfort for the family. It wouldn't be possible for him to know Charlie's entire situation in the couple of minutes since the ticket was found.Movie Nut
Corrected entry: When in the boat tunnel, we see a brief picture of 'Slugworth' being shown in the background. Both Charlie and Grandpa Joe react to it, even though there's no reason for Grandpa Joe to. He couldn't possibly think it was Slugworth, given how it was actually just an actor, Mr. Wilkinson, whom he has never even seen before.
Corrected entry: When Charlie's teacher is giving a lesson on percentages, he tells Charlie that he will use the number 200 as a means of calculating a simple percentage because can't figure out what percentage 2 out of 1,000 yields. This is simple to figure out even without a calculator. As someone who is sanctioned to be teaching mathematics, he should know this.Phaneron
Corrected entry: At Wonka's factory gates (coming from his entrance door towards the gates on the right) there's a road traffic sign which states '(you are on a) priority road' on the road is bending to the left. I presume the set (gates, carpets, office) was build on an existing junction.
Corrected entry: When Charlie is first seen walking up to the gates of the Wonka factory there are just the street sounds. Then suddenly the "Tinkerer" (the guy with the knife cart) gives the dissertation about fear of little men (a poem of some sort) then proceeds to leave clanking and clattering on the cobble stone street. He should have either been visible on the first shot of Charlie as he walked up to the gates or heard as he approached later on to give his dissertation.James Rowell
Corrected entry: When everybody moved to the side of the boat to exit onto the dock, the boat should have leaned in that direction from the imbalance, but it stayed steady.
Corrected entry: Before the ride on the Wonkamobile, an Oompa-Loompa pours a liquid from a green bottle into the Wonkamobile, but in the next shot he is pouring it out of a brown bottle.
Corrected entry: When Augustus Gloop's parents are interviewed, the father eats the end of the microphone, but the announcer goes on to ask the mother a question with the mic still intact.