Jose,
I ain't getting a dough from that FLY opera. Let's see, Shakespeare's Romeo & Juliet and The Wedding Singer, hmmm? Classic drama; Adam Sandler comedy...How does that stack up? It used to be Broadway plays were adapted into movies, not the other way around.
I wasn't comparing "Romeo & Juliet" and "The Wedding Singer"... Trust me on that one. However, there are some wonderful films out there that probably would make wonderful musicals if the proper writers and production team were in place. Dramas and comedies.
And as for "The Fly" - regardless of whether you're getting any dough or not - it was an adaptation of a film. As was the recent Jake Heggie opera, "Dead Man Walking" - which was inspired and adapted from a book/memoir and its film adaptation.
A good story is a good story. Source material is source material. Now as to whether or not that good story remains well-told and well-sung, well... that's the challenge.
Would you also declare a ban on all further Shakespearean adaptations and re-imaginings? -As other plays, musicals, movies, tv shows... ?