Pale, posh and scarily clever, Tilda Swinton is one of our most unique actors. Here, she talks about Derek Jarman, ghosts and why making films is like being in the army. 'There's such an effort to try and explain people,' says Tilda Swinton, folding in on herself for mildly exasperated emphasis. She doesn't want to know why people are freaks, she says, they just are. 'That's what I love about freaks. They kind of decide to be - or we decide to be, I don't know - but the idea of trying to psychoanalyse freaks ... it's kind of a waste, isn't it, of their freakishness?' [More]