Goldie Hawn and Kurt Russell have one of the cutest - and long-lived - romances in Hollywood history, and now the Christmas Chronicles duo have opened up about what makes them tick!The actress, 75, lifted the lid on her 37-year relationship with partner Kurt, 69, and admitted you have to keep hold of the element of surprise. MORE: Goldie Hawn's bathroom in LA looks like a luxury hotel"I think the one thing you have to remember is, 'do I want to be here?'" she told the Radio Times. "If two people