Lust Caution This is a film which many people have suggested contains unsimulated sex I have read a few interviews with Ang Lee where from what he says that conclusion seems inescapable Does anyone have anything definitive on this The film at least in the US carries a disclaimer during its end credits to the effect that the participants in the explicit sex scenes were over 18 Isn t it a legal requirement in the US for films with unsimulated sexual content such as pornographic films to carry such a disclaimer