Kate Winslet took her baby Mia for a ride in a buggy near her Surrey home. The actress, who co-stars in the new movie Quills - out this week - about the notorious Marquis de Sade, says that having a baby with husband Jim Threapleton has changed her. 'Mia has made me calmer. I used to smoke a lot more and drink a lot of coffee and be all nervous and not eating. Now there's something so much more important than me, or Jim, or work,' she says.