Season two of Sir Philip Pullman’s His Dark Materials continues on BBC1, with Dafne Keen and Amir Wilson taking the lead roles as Lyra and Will, as the episodes track the plot of His Subtle Knife, the second book in the trilogy.
The episodes are being shown in the 8pm slot on BBC1 and episode three of season two is this weekend.
While the first acclaimed series focused on the plot of Northern Lights, the first book in the Oxford author's trilogy, the second series reflects the plot of the second book, The Subtle Knife.
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And while the episodes stick to the plot of the novels quite closely there are some subtle differences.
Perhaps the biggest change made from the opening sections of The Subtle Knife relates to Will Parry, played by Amir Wilson, according to the Radio Times.
In the book Will is introduced in the first chapter, having not appeared in Northern Lights but this is different in the series - the first parts of Will’s story were already told in series one and so there is no need for them to be repeated in the series two premiere.
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Instead, we see Will and Lyra’s first encounter from Lyra’s perspective, seeing her traipse through some forest terrain and hiding out in a cave before she arrives in Cittàgazze, with Will surprising her in a shop.
Another change worth noting in Will and Lyra’s storyline concerns their meeting with local Citagazze children.
In the book, they meet a boy and a girl name Paolo and Angelica, but in the series there are two girls – Paolo being replaced by Paula.
Casting director Kahleen Crawford said: "We just had an embarrassment of riches in the casting process.
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"And when it came down to it we had some really great younger brothers to play Paolo – but ultimately we had these two girls Ella and Bella who were so strong in their performances that, if I’m remembering correctly it was essentially decided that their parts should be made bigger, and there would be more for them to do on-screen."
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