>>I just think sung-through musicals will never work on film. They end up being a long, long music video.
What's wrong with that? There are many ways it could have been approached, but Columbus has said in various forms that they want to appeal to (or 'not ignore' basically) the teens of today who would be seeing it. The older generations presumably have the show in their hearts at best, or merely in their consciousness at worst just from it being around for 10 years. The young kids of today had very little exposure to the show and story, or themes and subject matters, and by default their exposure to tv/film/video in general is very fast-paced, music-video style production. They're used to it and the rest of us who are older simply relate to it (or not) on perhaps a deeper level (or should I say less surfacial level) because of age or life experience. It seems a great effort was made to adapt to all the audiences who would have the potential to appreciate it in any way.
"There is no use trying," said Alice; "one can't believe impossible things." "I dare say you haven't had the practice," said the Queen. "When I was your age, I always did it for half an hour a day. Why, sometimes I've believed as many as six impossible things before breakfast." --Alice in Wonderland