Frances Fisher gave an interview through Skype with Aaron Stipkovich of StipkoLive.com and ANDMagazine.com. She discussed many things in the almost half an hour interview. She discusses the development of her character, Maggie, from The Host beginning at about the three minute mark. She also talks about working with Andrew Niccol, both as a writer and a director. Frances Fisher is very much a veteran actor and this comes through while she talks about her craft. The interview was filmed while the cast was still filming in Louisiana. I think this is the first interview that we have seen or read with any of the cast during or since filming wrapped.
Sources: The Host Movie Fans, AND Magazine