His Dark Materials returns for a second series on BBC One just when we needed it - not 'season', despite Ali's slip of the tongue in the intro, this is a British show, come along now - and we've got Lyra (Dafne Keen) and Will (Amir Wilson) themselves on the line to talk about how the show has changed their lives, acting alongside a daemon, seeing your poster above a highway and much much more. This one's a lot of fun, promise!