Really, we could’ve done Smaug in the traditional way – just ask Benedict Cumberbatch to come into a voice booth and record his dialogue, and do everything entirely with keyframe animation. But when we record what Benedict’s body is doing, it frees him up to give us some idea of the physicality and intimate the poses, so that what he’s got on his mind can come through in how he’s performing it – and we’ll take that and extend it into what we do with the dragon.