This week "Sunday Morning," hosted by Jane Pauley, features Tracy Smith's report on casting directors, looking for Hollywood's next star. Plus: Mo Rocca sits down with TV and film star Angie Dickinson; Alina Cho finds out how home stage Meridith Baer dresses homes to sell; Michelle Miller looks at the history of the Harvey House restaurants that helped reshape the American West; and Lee Cowan examines the process of transforming actor Rami Malek into Freddie Mercury for "Bohemian Rhapsody."