Pifias

The Bucket house as seen from the Wonkavator doesn't match earlier scenes of the same house.

When Willy is coming out of the factory, there is a large shadow crossing the walkway when the camera angle is at Willy's back. Right as he walks into the shadow (at around 44 mins), they change cameras to show him from a closer shot, and he is further back on the walkway and for the second time walks into the shadow (at around 44 mins). The actors discuss this on the 30th anniversary commentary.

During the overhead shot of the guests watching the Wonkatania boat approach them, Violet is seen tossing her giant gummy bear to the ground, however in the next shot from behind the guests and the subsequent front shot as they walk over to the boat and Charlie says "Wow! What a boat!" Violet is seen holding the gummy bear under her arm again. It disappears permanently when she boards the boat.

When Mike Teevee is going to send himself via Wonkavision, the cameraman (Oompa Loompa) puts his goggles on twice (at 01:28:33 and 01:28:36).

When the Wonkavator appears for the first time (at around 1h 35 mins), it appears completely different from the one that goes through the glass ceiling (at 01:36:57, e.g., the spire is missing from its roof, and there is less exterior trim).

The liquid issuing from the beehive on the machine that makes the chewing gum meal (at around 1h 11 mins) is probably not honey, as cold or room-temperature honey is more viscous. Hot honey can drip at that speed.

The Wonka candy Grandpa Joe gives Charlie for his birthday is clearly not a Wonka chocolate bar; it appears to be a round, cream-filled pie. There was no chance it could have contained a golden ticket.

Apparently half of the people in England don't have English accents.

The processing of chocolate never enters a watery state as show in the factory. Chocolate tempers at exactly 115 degrees Farenheit in order to be molded into bars and other chocolate shapes and no liquids are added. Once chocolate is watered down so much as with the chocolate river, it is useless and cannot be reconstituted, although it is show for dramatic effect.

Mrs. Teevee attributes the musical combination to Sergei Rachmaninoff. It is, in fact, the opening notes from the Overture to The Marriage of Figaro by Wolfgang Amadeus Mozart. Mrs. Teevee reveals herself as pretentious and attention-seeking by making this error.

In the final scene in Willy Wonka's office, his hair changes back and forth from neatly-gelled and manicured to flyaway and ungroomed. This may be intended to show Willy's unpredictable nature.

When everyone is in the hallway outside the nerve center (at around 1 min), they are all crouched down; when Wonka opens the door (to the Chocolate Room) they are all standing up straight with 6 feet of room on top of them (at around 4 mins). The room and hallway are full of other such optical illusions, so this is clearly an intentional artistic effect.

During her TV interview, Violet says she laid off gum and switched to chocolate bars for the contest. She then proceeds to gloat about the piece of gum she's been chewing for three months, thus breaking a world record. If she laid off of gum for the duration of the contest, how is it she's been chewing this piece of gum for three months? She probably meant that she didn't switch to another piece of gum for three months.

When everyone first enters the Chocolate Room containing the chocolate river (at around 1 min), the cast enters in reverse order of how they were positioned to in the previous scene when Wonka plays the musical lock on the door. This may be a continuation of the paradox hallway gag.

When Wonka first allows the children into the chocolate room he makes an umbrella by sticking the bottom of his cane into a "mushroom" top and then holding the cane upside-down. As he twirls the umbrella you can see the stab holes in the Styrofoam bottom from prior takes (at around 18 mins).

The first time you see the world map on the news (at 13:30, indicating where the gold tickets are found), there is a hole/tear in the map around Montana - this is the place where the marker "3" will be placed in later takes.

When Willy Wonka rushes over to Augustus Gloop, Augustus can clearly be seen pushing himself into the river (at around 29 mins).

When the great glass elevator is going up and out you see numerous windows, during exterior shots none of these windows are seen at any point, in fact all the windows from the exterior of the factory don't match any of the exterior windows.

When the Candyman gives the children the strip of dots on paper (at around 8 mins), you can clearly see the kids pretend to pick the candy off the paper and eat them.

At approximately the 1:35:45 mark when Willy Wonka is at the elevator and goes to press the button to open the doors he doesn't press any of the actual buttons but the metal paneling to the right of the buttons.

Bill the Candy Man is very giving with free candy during his initial musical number, but later in the story makes Charlie cough up the money for his chocolate bar. He probably charged the candies from earlier on their tabs.

In the fizzy lifting room, silver paint from the walls can be seen on both Charlie and Grandpa Joe's hands when they begin to burp and lower from the fan.

When Mrs. Curtis is being told her husband will be released by the kidnappers in exchange for her case of Wonka Bars, it is odd that she hadn't opened them to check for the golden ticket as soon as she bought them thus she could have given the kidnappers the bars.

At the very beginning, Bill the candy shop owner does not charge the dozens of kids who visit his shop for anything and even lets them run free behind the counter for any candy they want free of cost, which is not believable.

When Mr. Salt pleads with Veruca, he says four Golden Tickets remain to be found. However, he mouths "three" and holds up three fingers (at around 11 mins). The obvious audio dub indicates either an error, or that the filmmakers may have switched around the order in which the children are introduced during editing.

When the kids in the candy store are yelling, "Me, me!" their lips don't move (at 04:15) when Bill is on the ladder ready to shower a hand full of candy down on them.

At the beginning of 'Cheer Up, Charlie' Mrs. Bucket's lips aren't moving with the music (at 22:44, but there is no synchronization issue on the widescreen version).

When Mrs. Teevee is being covered in foam on the ride, we hear her cry out, "It's even in my shoes! It'll never come out!" but her mouth is clearly not speaking the words.

During their first song, the Oompa Loompas sing (01:00:28), "What are you at getting terribly fat," but the words flashing across the screen say, "Where are you at getting terribly fat."

The wire holding the Wonkavator is visible as it flies over the city (or at least as it breaks through the ceiling at 01:36:56).

In the fizzy lifting scene (01:16:12 to 01:18:59) you can clearly see the rigging for the actors (for example, two cables holding up Charlie by his waist at 01:16:17 when he is holding onto Grandpa Joe as they are horizontal along the bottom of the superstructure). And if you look closely you can even see the hooks they're attached to (for example, on Charlie's left side of his waist when he somersaults at 01:17:18).

When Charlie and Grandpa Joe float towards the fan, you can see the cables holding them up (at 01:18:41, a faint black line coming down to Charlie's left shoulder).

When Mike Teevee gets thrown back into the pots/pans after eating the exploding candy in the inventing room, you can clearly see the line attached to his belt that was used by a crew member to yank him backwards (at 01:07:53 as the rack is falling backwards).

When Violet turns into a blueberry, you can see the hose inflating her blueberry suit (full-screen only).

Although the film is set in a mythical English-speaking country, German license plates can be seen (at around 24 mins) as Charlie walks past a restaurant while his mother is singing "Cheer Up, Charlie".

When reporting on the craze of trying to find a golden ticket the news reporter states the there are 5 continents. Geographers, as of the 50s, broke up the America's and added Antarctica thus creating 7 continents.

According to the golden ticket the tour of the factory is 1 October. Judging the clothes Charlie and everyone else wears it is implied the factory and Charlie's home is in the northern hemisphere, meaning it is autumn but most of the trees still have green leaves. This is only possible in the southern hemisphere where it is spring that time of year.

In the beginning, Charlie's mother told Grandpa Joe that he was bedridden. Later on when he gave Charlie his birthday present and spent his tobacco money on a Wonka Bar, there was no explanation as to how he was able to get it when he was bedridden.

The movie implies that the 'golden tickets' were hidden and sent out randomly to the public, but Mr. Wilkinson (the strange man with glasses who appears when every ticket is found and whispers in the ear of the kid) means that Willie Wonka deliberately knew where these tickets would be discovered.

When the public is made aware that the 5th ticket is a fake, nobody makes any attempt to buy the remaining Wonka Bars.

In the scene when Charlie and Grandpa Joe are singing "I've Got a Golden Ticket," Grandpa Joe is walking perfectly fine. However, Grandpa Joe says that it's been 20 years since he has been able to walk. If this actually happened he would be bedridden and wouldn't be able to walk even with a cane.

Whenever a golden ticket was found, "Slugworth" was always on hand immediately to talk to the winner. While he could easily have known where the tickets were actually distributed (for reasons revealed at the end of the movie), there is no way he could have known in which order they would be found, and it therefore would have been very unlikely (1 in 120 odds) that he would have been at the locations in the same order in which they were found.

During the last Oompa Loompa musical number (following Mike Teevee's undoing), the Oompa Loompa in the foreground apparently doesn't know the words to the song. Similar errors occur throughout the Oompa Loompa scenes, as many of the actors spoke little or no English, and had trouble learning the songs for this reason.

In Wonka's office, the clock's pendulum (at around 1h 30 mins) should be anchored under the number six; it is off-center to the right. The light bulb in the half lamp on the desk is whole (at around 1h 30 mins). These break the harmony of everything being cut in half. While the off-center pendulum IS an error, however, the light bulb not being cut in half technically isn't. Director Mel Stuart explained that they tried to cut the light bulb in half, but doing so caused it to be unable to function. Thus they had no choice but to leave it whole.

When Charlie's family wish him a happy birthday, George and Georgina are clearly struggling to speak to him in English due to the actors being German.

The German sign which says that there is no Wonka chocolate for sale says "Nicht an Verkauf", which is grammatically wrong. It should say "Nicht zu verkaufen".

During Mr. Turkentine's math lesson, he shows disdain for Charlie having unwrapped only two Wonka bars during the contest by saying he cannot figure out the percentage of two out of a thousand. The math seems simple enough to figure out, .002 or 0.2%, especially for a teacher.