Harry Potter and the Prisoner of Azkaban (film)/YMMV

These things about  are subjective - not everyone will agree with all of them.

"Harry: Ron! What is it? Ron: (whimpering) Spiders... asking me to tap-dance... but I keep telling 'em I don't want to! Harry: (forcing back a laugh) Well you tell 'em you don't want to! Ron: (spaced) Yeah... (collapses immediately on the bed)"
 * Continuity Lock Out:
 * The simple fact that Sirius is innocent and was framed by Pettigrew is explained in the most confusing manner possible. This sentence probably just explained it more clearly than any line in the entire movie.
 * They also cut out Dumbledore's argument with Cornelius Fudge, which greatly foreshadowed the events of The Order of the Phoenix.
 * The film never explains who Moony, Wormtail, Padfoot and Prongs are. Then, Harry calls Pettigrew "Wormtail" in the Goblet of Fire movie without explanation, and Sirius is called "Padfoot" in Order of the Phoenix.
 * Neither an explanation for how Lupin instantly recognizes the Marauder's Map for what it is nor for how Sirius knows that "The Map never lies" is given as well.
 * Memetic Mutation: "Turn to page 394." It's due mostly to Snape fangirls finding Alan Rickman's delivery of this very random line extremely sexy. The fact that he repeats "page 394" a couple times later in the scene pushed it to full-blown meme status.
 * Memetic Outfit: Hermione's pink hooded sweater.
 * Non Sequitur Scene:
 * The talking shrunken head on the Knight Bus.
 * The choir singing the witches' poem from Macbeth.
 * Once in Griffyindor's Boy's Room in the middle of the night, Ron bolts up, shaking and whimpering something incoherently.