Blanchett: I'm my children's parent, not their friend

Cate Blanchett doesn't worry about her children liking her, preferring to concentrate on being their parent rather than being their friend.

The 'Hanna' actress and her husband, playwright Andrew Upton, believe being strict with sons Dashiell, nine, Roman, seven, and Ignatius, three, and teaching them boundaries is more important than being their friend.