These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Charlie and the Chocolate Factory
Accidental Innuendo: While it's less prevalent than it is in the movie (see below) the book still manages it at least once:
Oh, the joy of being able to cram large pieces of something sweet and solid into one's mouth!
In one of Dahl's writings for Playboy, "schnozzberry" was used as a euphemism for "penis."
Charlie is merely a patsy, intended to inherit the responsibility for the multiple acts of child abuse, unsafe working conditions and slave labour, committed in Wonka's factory.
Is it possible that Wonka is an example of Asexuality? His devotion to a field of work most would consider only a hobby and the fact he didn't get married and chose to find an heir rather than have children suggests this.
Harsher in Hindsight: Viewers might view the Oompa-Loompas in a different light once they lean about the real life child slavery issue the cocoa industry has.
And the Amusing Injuries the kids suffer are much more terrifying if one remembers that children used to work in factories, and often suffered horrific actual injuries (sometimes fatal) in case of a slightest mistake.
Iconic Character, Forgotten Title: To an extent. Willy Wonka is the standout character and the most famous adaptation, a 2005 American stage musical, and a defictionalized candy brand are named after him rather than poor Charlie. But other adaptations use the original title without any trouble.
It Gets Better: The first third of the book is devoted to backstory and Developing Doomed Characters, but once the tour begins, wheeeeeee! Also applies to all adaptations, which easily split into two halves — the first set in the mundane world, the second in the absurd one.
It Was His Sled: The Reveal that the Golden Ticket contest is a way for Wonka to find an heir; some adaptations (most obviously the 2005 film) put Not His Sled twists on the ending to compensate for this.
Squick: Augustus Gloop goes for a swim in chocolate intended for eating. A few days later someone in the world will be eating chocolate that a fat boy has been swimming around in for a few minutes....
Considering that Deep Roy (the actor for all the Oompa Loompas) comes from and is quite famous in Bollywood, this is not in the least surprising.
Deep Roy was an inspired casting choice, and not only did composer Danny Elfman work from Dahl's original text for the lyrics, he used a different musical genre for each song and made each into a production — and satire — worthy of the original book. That part, at least, was dead-on.
Broken Base: Better than the original movie? Or is the original still the best? Woe betide the one who voices an opinion on the subject!
Complaining About Movies You Haven't Watched: Gene Wilder (the Willy Wonka from the 1971 film) notably dismissed the new film as well as claiming to have no intentions of actually watching it based solely on it's advertisements.
Heartwarming Moments: Grandpa George, a completely irascible curmudgeon who had virtually nothing good to say about anything, tells Charlie, when he offers to sell the golden ticket in order to support the family, that he would be a fool to sell his dream for something as common and ridiculous as money. Considering how cantankerous and irritable he was to that point, it comes out of nowhere that he is the one who speaks out against selling the ticket, particularly in contrast to his stating that Charlie's one bar a year didn't stand a chance of winning in the first place.
Purity Sue: Charlie's a saint in comparison to his 1971 self (who was still a good kid, but flawed like a regular child). He's hardly even given a chance to test his character for the first half of the film, whereas in '71 he faces the temptation of both Slugworth's deal and the fizzy lifting drinks. This is more in line with how he was written in the book, so whether or not staying faithful to the book was a good thing in this case depends on the viewer.
They Wasted a Perfectly Good Plot: Specifically, it would have been great to see Depp recite the full "We have no way of knowing..." poem with all the manic energy his character used in the book.
Uncanny Valley: Though no one ever mentions it, Violet's mother has clearly had some plastic surgery.
Mike Teevee received an update from a television addict obsessed with Westerns to an videogame-playing technology nerd, an image children of the day can better relate to. His flaw is that too much time "gaining intelligence" from TV and playing violent video games has made him a dickish, violent little know-it-all with no imagination. This may be Hypocritical Humor, as some of Tim Burton's works, this one included, have actually gotten video game adaptions (See: The Nightmare Before Christmas). And it does make the Oompa-Loompas still insisting that television was responsible pretty nonsensical.
Likewise, Violet is updated to being overly competitive, rather than merely a gum chewer. Following on from the book, this film even lampshades the hypocrisy of Wonka hating gum, when he manufactures and sells the stuff.
Awesome Music: Lots of great tunes thanks to the Hairspray tunesmiths being on board (like Danny Elfman, they have a ball with the Oompa-Loompas' segments), and there's even an excellent rendition of the 1971 film's "Pure Imagination" as The Eleven O'Clock Number. Above all, the Act One closer "It Must Be Believed to Be Seen" is a showstopping solo for the ages that distills the many facets — trickiness, creepiness, whimsicality, you name it — of Willy Wonka's character into less than five minutes.
Woolseyism: Again, Violet and Mike's personalities are tweaked to fit the times. Violet is a Shameless Self-Promoter who, with her father's help, has parlayed her record-breaking gum chewing abilities into a Cash Cow Franchise — a spoof of celebrities who manage to become inescapable without demonstrating much actual talent (i.e., many reality show stars and socialites). Mike was a nasty, hyperactive piece of work before his mom decided to just let electronic media babysit him, and the resultant overstimulation has made matters worse.