This brings back memories of when I was teaching high school theatre arts. I gave a similar project to my advanced theatre class one semester. They had to pick a current musical on Broadway and do an extensive report on it. In addition to a plot synopsis, song list, etc.; I also had them summarize the reviews from selected critics, track the weekly grosses, design their own marketing materials (posters, etc.)for said musical - and do a class presentation of their findings (along with playing a selected track from the cast album).
I ran into a lot of the same issues with students complaining that they couldn't find info on their musicals. Of course these were the usual habitual slackers; the ones who had chosen such obscure shows as Oklahoma! and The Music Man... I even gave them a list of websites to use as resources.
The fun part was convincing the librarian that "Playbill.com" should be added to the list of accessible sites...
"You pile up enough tomorrows, and you'll find you are left with nothing but a lot of empty yesterdays. I don't know about you, but I'd like to make today worth remembering." --Harold Hill from The Music Man