Two WTF moments in the movie (spoilers)

[Carol]

Joann:
> 3. Mr. Weasley telling Harry about the vanishing cabinet. 
>
Carol responds:

What? Mr. Weasley tells Harry about *the Vanishing Cabinet*? I thought it was bad enough (as I gathered from the trailer) that Mr. Weasley told Harry that Voldemort has chosen Draco Malfoy for a mission. He can't possibly know that. Only Snape and Dumbledore (and Narcissa and Bellatrix) know it, and none of them are telling anybody. But not even they know about the Vanishing Cabinet, which is Draco's "plan" for doing the "job" that Voldemort assigned him.

Of course, Mr. Borgin (in the book) is helping him fix it (under coercion) and Voldemort and the DEs that Voldemort orders to invade hogwarts as back-up for Draco find out about it eventually, but neither Snape nor Dumbledore knows about the Vanishing Cabinet, so it's impossible that Mr. Weasley would know about it.

And if Harry knows about it, wouldn't he know exactly what Draco is doing in the Room of Requirement? No point in hanging around trying to catch him, just go straight to Dumbledore. But, then, DD would have to know about it, too, because he'd have told Mr. Weasley! Or better yet, just entered the RoR and Vanished the Vanishing Cabinet.

The whole point of the Vanishing Cabinet plot is that DD and Snape know that Draco is planning to kill DD but don't know how, and they think they've taken all possible precautions against getting DEs into the castle as back-up for Draco, who won't dare try to kill DD without them. And, of course, Harry is trying and failing, just as Snape has, to figure out Draco's plan.

Carol, hoping that the filmmakers haven't messed up *that* badly!