When DiCaprio waffled about signing to play Jack, and both actors were at the Cannes Film Festival, Winslet discovered where DiCaprio was staying, slipped out of a press junket and collared him in his hotel room. “I was thinking, ‘I’m going to persuade him to do this, because I’m not doing it without him, and that’s all there is to it, ’” she says. “‘I will have him.’ Because he is fucking brilliant. He’s a fucking genius, and that was absolutely why.”