Topic of the Day: I found a couple of articles that list musicals based on movies, so that's where these came from and why there are so many. Also, all are shows that I've actually seen:
Stage shows I've seen that I liked or thought were well done:The Baker's Wife
Beauty and the Beast
Billy Elliot (I have the Blu-ray of the London production)
La Cage aux Folles
Cannibal! The Musical!
Carnival!
The Full Monty
Hairspray
The Last Starfighter
Legally Blonde
A Little Night Music
Little Shop of Horrors
Mamma Mia! (
THIS article about movie-to-musical adaptations admits that the plot is very similar to "Buona Sera, Mrs. Campbell," so it lists it.

)
My Fair Lady
Passion
Reefer Madness
A Room With a View
The Spitfire Grill
Scrooge
Secondhand Lions
She Loves Me
Spamalot
Sunset Boulevard
Sweet Charity
Young Frankenstein
Stage shows that I didn't like or thought weren't done well:A Wonderful Life
Honorable mention (shows that I liked but may not actually have been that great):Catch Me If You Can
The Color Purple
Nite of the Living Dead! The Musical! (this was an original musical put on by Theater Artists Olympia several years ago. I was in it)
Shrek The Musical
Victor/Victoria (I got to see Julie Andrews live!)
Whistle Down the Wind