Continuity: In the scene where Wonka shows the tour the Everlasting Gobstopper machine, you can see that the candy is already on the finished belt before he turns it on. In the close up of the candy, there are a lot of extra candy, but after they get passed out, the excess is gone.

Continuity: When Willy Wonka presses the button for the Spectacular Gum Making Machine, all of it's gears and parts and contraptions start working. In one shot, a tray of a pale white chunky substance is covered by a lid. As the lid lifts off of the tray, the pale white chunks are now bright colors. You can see where the cut in the shot was made for them to replace the first tray with the second tray. There is a slight jump in the position of the lid and the misty fog in the shot changes in the same instant.

Continuity: 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.

Continuity: When Grandpa Joe, Charlie, and Willy Wonka get into the Wonkavator for the first time from Wonka's office, the Wonkavator has a plain hexagonal shape. As it flies over the city, however, it sports an elaborate design complete with an ornate minaret on top.

Continuity: When the kids stick out their hands to receive gobstoppers, Mr. Salt, who is standing behind them, changes position between shots.

Continuity: When Wonka comes out of the factory to greet his guests, we see from a far away shot that he comes to the corner of the red carpet. When the scene cuts to a closer shot, he is coming up on the same corner again.

Continuity: As the case of wonka bars is being auctioned, and the auctioneer says "3000 pounds, 4500 pounds", his arms go from being at the edge of the table to next to his sides.

Visible crew/equipment: White microphone equipment is visible in Mr. Beauregarde's shirt pocket throughout the movie. This is particularly noticeable when he tells Wonka not to talk to him about contract.

Continuity: When Charlie is working with Mr. Turpentine on the wart-removing potion, the bottles and cups on the table change between shots.

Continuity: When Charley visits his mother at the Laundry, he sits down at the washing bowl. When you see Charley from behind you can see the big wooden spoon sticking out of the bowl. When the shot turns to the front of Charley, he is stirring the laundry with the spoon. In the next shot of Charley from behind the spoon is in the exact same spot as previously - it hasn't moved.

Continuity: When they are all in the inventing room, and Mike TeeVee is eating the explosive candy, you can see the explosion come out of the machine he is standing next to. In the next scene, when Mrs. TeeVee is leaning over him, he blows out a puff of smoke like it had come from his mouth.

Audio problem: When Mr. Wonka bites into a teacup at the end of the song of the room with the Chocolate River, you hear a crunching sound, yet it looks like he has to "tear" the cup a bit. How can he crunch on somethng that requires him to tear at it? [In an interview, Gene Wilder stated the cup was made out of wax - not excusing the mistake, but in case anyone was wondering...]

Audio problem: When the group is on Wonka's Pop-mobile and covered in the foam, Mike Teevee's mom says her line, "It's even in my shoes." From this point to the end of the shot, her lips don't match what she says and neither do Mike's, but the mom is more noticeable.

Continuity: When Grandpa Joe gives Charlie the candy bar bought with the tobacco money, Joe pulls it out, holding it at the top right and bottom left corners. When the shot cuts to Charlie and he says "Grandpa, that money was for tobacco." you see Grandpa Joe in the foreground of the shot, and his right hand has moved from the top right corner to the lower half of the candy bar. When the shot cuts back, his hands are as they were before, on the top right and bottom left corners of the candy bar.

Continuity: After introducing Mr. Wilkerson, Wonka's hands magically appear on Charlie's shoulders.

Continuity: In an overhead shot of Wonka's boat, Charlie faces to the left, but in the closeup Charlie faces to the right.

Continuity: At the end of Veruca's song she sings "Don't care how, I want it now". In one shot her hands are at the far sides of the box, but in the next shot they are together at her sides.

Continuity: When Charlie's mom and grandparents are watching the TV, hearing about the end of the Wonka contest, look at the TV. In the first shot, the left panel of the TV housing is missing. In the next immediate shot it is there, and remains for the rest of the scene.

Continuity: When the first "good egg" falls on the eggdacator, its position changes between shots.

Revealing: 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.