Rebecca Luker confesses to not reading the original "Mary Poppins" books despite her role as Mrs. Banks in the current Broadway musical version; recalls her Broadway debut understudying and then assuming the role of Christine in "The Phantom of the Opera"; talks about her great experience appearing in a (almost completely) non-singing role in A.R. Gurney's "Indian Blood"; and explains why she's exploring singing in a register lower than her pristine and acclaimed soprano voice. Original air date - January 5, 2007.