Actress Sienna Miller is planning to settle down and have children with boyfriend Jude Law. The Alfie co-stars' wedding plans were cancelled in July 2005 when Law admitted he had cheated on his 24-year-old fiancee with his former children's nanny DAISY WRIGHT. But Miller has now forgiven Law's infidelity, and hopes to cement their relationship by starting a family. She says, "I love the idea of being a working mum and having my kid on the film set." Law already has three children with ex-wife SADIE FROST.