Harry's mother -- which explains virtually everything he's done up to this point. Kinda. If you squint. But in the movie, we never see Tonks' patronus, or learn in any other way that a Patronus reflects love at all, making this scene entirely incomprehensible unless you knew what it meant anyway. 6. There's Actually an Explanation for the Dog Costume In The Shining Possibly the most iconic "what the hell?" moments in cinema is t he quick shot of a dude in a dog costume in The Shining . In comes out of absolute nowhere, and is never explained -- and when you're dealing with a famously detailed filmmaker like Stanley Kubrick , this seems really out of place. Since he went so far as demand that props be a specific color for black and white movies or that a space toilet have actual working instructions, the idea that he just threw up his hands and said "a dude in a dog costume sure would be weird, eh? Let's go with that!" doesn't seem plausible. And it's not, because that's not what happened. In Stephen King 's original book, the dog costume is carefully explained: His name is Harry, and he's a sex-slave in a homosexual sadomasochistic relationship. He's actually brought to one of the hotel's dance parties and forced to behave like a dog the whole time for the amusement of his "master." So... now you know that. 5. Scott Pilgrim Vs. The World : Subspace Scott Pilgrim Vs.