I love this movie too, and have ALWAYS wanted to visit the island in northern Michigan where they filmed this (at the Grand Hotel).
Michael Shaw (who recently had his famed Ruby Slippers stolen) also owns the wonderful framed photo of Jane Seymour that was used in "Somewhere in Time." I've seen it hanging on the wall in his apartment. It gave me chills when I saw it, so this movie has a big affect on me too!
I love Richard Matheson stories. He wrote so many of the old Twilight Zones, and when you think about it, this is movie is a really great (long) Twilight Zone-like story.
And I agree, it would make a wonderful musical!
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22