In an interview with ITV's This Morning, actor Damian Lewis, husband of Helen McCrory (Narcissa Malfoy), announced that Helen will begin filming her scenes for Harry Potter and the Half-Blood Prince 'this week'. The interview took place February 29, 2008, where Damian promoted his new film, The Baker (in which he and Michael Gambon [Albus Dumbledore], co-star).

UPDATE: We have a video of the interview, where Damian mentions at the very end (seven minutes in), that Helen will be starting this week, and that she is 'very excited'.



Source: The Daily Snitcher