Kate Winslet and her on-again boyfriend Louis Dowler were hand in hand as they walked through London's Gatwick Airport on Saturday. Kate's kids Joe and Mia were also along for the flight, which was apparently headed to the Caribbean. Kate and Louis haven't been spotted out together since they split last November, but there have been reports that the duo had rekindled their romance in June. While Kate's relationship is heating up, her professional life is also on fire. Kate has been nominated for an Emmy for her work in HBO's Mildred Pierce and she has the thriller Contagion coming out next month, which means plenty of red-carpet opportunities if Kate wants to bring Louis along for any of her appearances.