I really like musicals, though I didn't like them as much when I was younger. I avoided watching The Sound of Music for years before I had to watch it during choir in 8th grade. I loved the movie and have watched it many times since then.
The movie is based on the true story of the Von Trapp family. From what I have read, things were changed for the movie. Sometimes that did add a bit more drama to what was happening. Even with the things that were fictionalized, the movie is very entertaining. It works well as a family friendly movie, though it could be a bit long for children. The movie does deal with serious things, like the lead up to World War II.
The music is wonderful and even though it had been a few years since I last saw the movie, I still remembered the words to most of the songs. Having characters break out in songs works a little better with this movie since it is shown that Maria loves music. She uses music and songs as a way to teach the children things, so it flows a bit better when they start singing. Julie Andrews is wonderful as Maria and I did like Christopher Plummer as Captain Von Trapp. The children are all fine, though some of them don't act as well as others.
There have been a few different DVD versions of the movie released. Unfortunately, the one I have doesn't have any extras.
I did post a review of the movie at Epinions.
The Sound of Music