11080959_958678197509650_412016092486260198_n

“The Untold Story of The Sound of Music,” a Diane Sawyer Special, will air as a special edition of 20/20 tonight (10-11pm, ET) on ABC. To celebrate the 50th Anniversary of the classic film “The Sound of Music,” Diane Sawyer tours Salzburg, Austria, and the surrounding Alps, with Oscar-winning actress Julie Andrews, revisiting many of the actual locations and reflecting back on the most successful movie musical of all time.

Watch this extended preview from ABC World News and then tune-in tonight:

(photo courtesy ABC/ Ida Mae Astute)