Terrible prequel. (Spoilers ahead)
Even if the argument that this is a "stand alone movie" is to stand the continuity and just plain flow of the movie makes this painful to watch.
Let's say it's "supposed" to be a prequel.
The idea that Wonka couldn't read was insulting to the character to say the least. And then in his life Wonka uses a super long contract something of which nearly kept him in contractual servitude. I don't buy it. But let's get into the meat of the movie.
For starters, it didn't explain how the oompa loompas got to his factory. And implies that the oompa loompas being there the whole time. Where in the original movie he kicked everyone out and shut the factory down after allegedly zlugworth other chocolate factories were stealing from him. Then suddenly the factory fired back up But the door stayed closed. This tells me the oompa loompas came in afterwards. Continuity errors alone in the movie made it unbearable. This movie implies that somehow four people managed to clean up this rental place, paint it, decorate it, create the chocolates including a 20-ft tall chocolate tree working only at nighttime traversing through sewer systems in secrecy while avoiding incompetent police. Right....
Now let's figure out how did Bleacher & Mrs. Scrubitt found out about his operation, managed to infiltrate it, completely undetected to "poison" all the hundreds of lbs of chocolate (that mysteriously came from nowhere BTW) they sold to all of those people. Um, no. Not buying it. You're telling me they never tasted any of the chocolates they made? Does this allude to an insider job, That perhaps someone on his team betrayed him? No, just accept that. On top of that they said in the movie they only had enough money saved to rent the shop for a week in the first place do accomplish all of this... Come on...
I like a good fantasy movie and I'm fine with magic and all, but this movie is complete nonsense.
But let's acknowledge the elephant in the room: The Noodle character. About 1/2 the movie is about her.
Now, it's a heartwarming story on its own, it had zero to do with Wonka and did nothing to carry the story forward. And even alludes to her being the mortal enemy of Wonka later on as her and her mother are the sole heir of zugworth chocolates... Really?
The worst part is when in the end when Wonka and "noodle" are being drowned in chocolate, the outcast oompa loompa somehow knew where Wonka was, knew how to save him, goes down in elevator under the church, FLIES!, flips the emergency drain valve, (that somehow flowed upward BTW) then somehow he manages to get back up on top to look down on them from above through the glass. All this out in the open with nobody seeing him. I may have been born in the morning but it wasn't yesterday morning. I would have better accepted that the oompa loompa just snapped his fingers, said a magic spell like a wizard to accomplish that over the movie's nonsense.
I'm sorry, but that movie was just awful in every sense and is a complete insult to the original movie.