Plot hole: In the end of the movie, when Willy Wonka decides to visit his father, his father does not recognize him until he looks at his "rare teeth." But the wall of newspaper printings that Charlie was looking at included a recent enough picture of Willy that the father would have definitely recognized him, before seeing his teeth, as Willy doesn't look like a normal person with that outfit.
Charlie and the Chocolate Factory (2005)
1 plot hole - chronological order
Directed by: Tim Burton
Starring: Johnny Depp, Christopher Lee, Helena Bonham Carter, Freddie Highmore, David Kelly, Missi Pyle
Factual error: In the scene in the glass elevator, when Mike Teavee wants to push a button, he presses the TV Room button. The elevator stops going down and immediately moves horizontally. The characters within the elevator are thrown against the wall from the sudden change. However, they are thrown against the wall that is in the direction the elevator is now moving, instead of the opposite wall as they should have been. (01:20:15)
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.
Trivia: In the scene with the young Willy Wonka eating a box of chocolates, he is writing down in a notebook a description of each chocolate he eats. When Roald Dahl was at boarding school there was a Cadbury's factory nearby that used the pupils as testers for their new chocolate, and they were asked to write down their comments in much the same way. This is mentioned in his book Boy.
Question: After young Willy sees his childhood home disappear, where did he live and grow up?
Answer: We are never shown what happened to him but he may have gone to live with relatives or he was simply put into an orphanage.