Field discusses playing Mary Todd Lincoln in Steven Spielberg’s Lincoln in this interview for PBS. On wanting the role:
I think it’s my size and that I somehow have a roundness to my face that perhaps I could put the two people together, me and Mary. And then when you add that it was Steven’s project, that eventually Tony Kushner wrote the screenplay and Daniel Day-Lewis was Lincoln, how would I not want this project? Mary was such a complicated, under-examined, really maligned and unbelievable important female American character, and Steven had originally asked me, like in 2005, to be Mary, but he didn’t have the project, really. It was something he wanted to do.