My wife's family forced me to watch 'Sound of Music' a few years back ... I have a clear disdain for anything that involves singing and dancing in a show (Cop Rock !! UGHHH) but I actually manged to make it through ... what ... all 4 hours of it unscathed. Julie Andrews can just flat out belt out a tune.
Recently, I watched 'De-Lovely', a life and times of Cole Porter movie featuring Kevin Kline and Ashley Judd, and found that to be an excellent flick, altho technically I could not call it a musical. Before the movie had even ended I had ordered an Ella Fitzgerald double disk set of Cole Porter songs - cannot wait to give that a listen.