Saw this movie again for the first time in a long time and just loved it.
I won’t repeat what everyone else has said about Robert Preston, but will give a shout-out to the choreography, esp. in the Library scene. Watching the lines of male dancers trade off as Marian dances with each in turn is a miracle of choreography. I don’t know how they conceived it, much less pulled it off.
Great stuff.
The Music Man VHS