The Snape film scene I hate
In fairness, I love everything about Occlumency in the books.
I love the standoff between Snape and Sirius at Grimmauld Place.
I love the fact that Snape and Harry converse for an extended period of time.
I like the use of the pensieve.
I love Draco’s glee at Remedial Potions.
I love the mind reading jibe.
I love that Harry doesn’t try, even though he’s encouraged by Hermione.
I love that Harry even suspects Snape of deliberately making it worse.
I love Harry seeing Voldemort’s visions.
I love that Snape gets increasingly annoyed at certain key moments - which perhaps don’t seem key on first read but you realise their importance later on…
I love it so much, I’ve written a meta on it.
But the films? Well, I love Snape pulling Harry down to the dungeons. …and that’s about it.
Because although I like the films, they fundamentally twist the lessons. In the films, Snape rants about James, rifles through Harry’s memories…and when Harry fights back and sees some of Snape’s memories, Snape chucks him out.
Which is the exact opposite of the book. I think it’s really quite important that Snape gives Harry credit when he breaks into Snape’s mind. In fact, he only chucks Harry out when Harry explicitly invades his privacy by snooping in the pensieve.
And even then, although it’s a devastating memory that he comes across, Harry doesn’t realise its true importance - it’s all about Harry and how he perceives his father, and not about Snape and why Snape would’ve hidden that memory.
It’s really quite lucky that Harry doesn’t fall into an earlier memory, that gives away Snape’s friendship with Lily - or a later memory, which gives away Snape’s allegiance.
So yes, when Snape throws him out, it is out of pure frustration and anger and betrayal - but it’s also about Harry coming close to seeing the truth. Not just because it’s Snape’s real feelings and motivation at stake - but because Harry is having Occlumency lessons because he has a connection to Voldemort. Harry is apparently useless at Occlumency.
…and double agent Snape really cannot risk the Dark Lord having access to the truth about Snape.