Premise

A breezy primer on personal finance covers such topics as credit cards, mortgages, investing and 401(k) plans. "Good Morning America" financial contributor Mellody Hobson is joined by Will Smith, the Jonas Brothers, Seth Green, Samuel L. Jackson, Christian Slater, Rosario Dawson, Cedric the Entertainer, Oscar the Grouch of "Sesame Street" and E*Trade's talking babies.