Kym Karath and Duane Chase, who played two of the von Trapp children, speak to PEOPLE about what Andrews was like on the set ...

PEOPLE has an exclusive peek at rare behind-the-scenes photos from the set on 'The Sound of Music,' as the beloved Julie ...

Now all grown up 60 years after the classic musical debuted in theaters, Duane Chase — who played younger brother Kurt von Trapp — tells PEOPLE that Andrews, 89, "was kind of a nanny for" the ...