Aha! A handy cut-out-and-keep guide to who sides with whom in The Twilight Saga: New Moon, as three outdoor banners for the film are released showing the Cullens (plus Bella), the Wolfpack (including - spoiler! - Jake) and the Volturi. Those who have read the books, go straight to the images; the rest of you, we'll explain.
The Cullens are, of course, the family of animals-only eating vampires who live in the town of Forks, Washington and generally pass for a human family (albeit an adoptive one, since they all appear close together in age). One of their number, Edward (Robert Pattinson) is in love with human girl Bella (Kristen Stewart) - hence the plot.
When Edward leaves her for her own good, she befriends her Native American neighbour Jake (Taylor Lautner), who has a secret of his own: he's developed the ability to shapeshift into a wolf and is spending a lot of time with the other young men on his reservation with the same ability (the Wolf Pack). And later in the story we meet the Volturi, rulers of the vampire world based in Italy. Yes, that's Michael Sheen and Dakota Fanning out in front.
New Moon is released on November 20, so be prepared.