4 of 16:
Nicholas Hammond, who played Friedrich, grew six inches as 'The Sound of Music' was filmed. Charmian Carr, who played his older sister Liesl, was made to stand on boxes and wear platform shoes in scenes with him. Meanwhile, the youngest actresses lost their front teeth.
(Pictured from left: Charmian Carr (Liesl), Kym Karath (Gretl), Nicholas Hammond (Friedrich), Julie Andrews (Maria), Debbie Turner (Marta), Angela Cartwright (Brigitta) and Duane Chase (Kurt) in a scene from 'The Sound of Music'.)
( Photo / Twentieth Century Fox Film Corporation / Robert Wise Productions)