Yes, season 2 was already filmed.
Warning: Spoilers fromHis Dark Materialsseason 1 finale, Betrayal, are discussed in this article.
The stage is set, the portal is open, and Lyras world is about to get immeasurably bigger.

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Theres a brutality to the end of the books.
Thorne went through countless drafts of the scripts to get it right.
Philip told us what he was doing.

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We circled back in a way that Philip got right the first time.
He has Asriel at the beginning, he has Asriel at the end.
So, we can explore further but, actually, you end up demystifying him somewhat.

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He needs to remain an enigmatic and slightly mercurial figure in Lyras view.
Theyll just be hearing about this incredible stuff hes doing but in a different place.
Thorne considers his discussions with Pullman about Asriel to be the greatest meetings of his life.

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Philip just talked to us about different things he had in his head that obviously werent on the page.
Other details came from hints in the books themselves.
Will fathers John Parry, whomakes his formal debut in season 2after a few brief glimpses in season 1.

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We couldve started season 2 with just Will and telling his story, Thorne says.
Thorne calls it pure visual storytelling another advantage the show has over the books.
The whole reason to get Will involved was for this final moment, he continues.

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I was really fascinated by how heroes are made.
Lyra is made in such a heroic way.
She tumbles through different scenarios that test her in different ways.

Alex Bailey/HBO
Wills heroism is made by caring for a mentally ill mother.
Coulter culture
Wilson is still peeling back all the layers that comprise Mrs. Coulter.
We just pulled at those threads of Mrs. Coulter to trace every episode.
We did a lot of thinking about that and how to place that in the script.
Quintessential Mrs. Coulter, she has a daemon that invites itself to be stroked.
What does Mrs. Coulter look like in our world?
Its a really interesting discussion, the actress says.
Does she wear the same clothes or does she adapt?
Every conversation you have about her leads to more and more conversations about her.
As she moves, you want to see her grow.
The actress said she already filmed a scene in which she tortures a witch.
There are lots of complicated reasons for that, Thorne explains of their limited role in the series.
Sorry, not very fascinating answers.
Basically, budget pragmatism and trying to find smaller solutions to the problem.
I dont think its a spoiler to say we see a lot more of the witches in season 2.
So, were waiting on that.