Ever been done twice?

[NoName3]

She Loves Me (B'way / In the Good Old Summertime (film)
Little Women (B'way) / Little Women (opera)

[westcoast_wannabe]

Jon that is a horrible inappropriate thing to say! But it literally made me laugh out loud.

[Mister Matt]

There is another musical version of A CATERED AFFAIR?

The first was A Family Affair loosely based on the film (though I don't think it was credited as such). Changes were made to the story to spin it into more of a madcap comedy though the core of the story is largely the same.

[Almira]

Thank you, MM!

[Wildcard]

The Lion, The Witch, and the Wardrobe (Narnia) has spawned a few musicals as well

[ChiChi]

Aren't there also tons of A Christmas Carol musicals out there? Big and small.

[Wynbish]

There are two separate musicals called "Ebenezer" and "Scrooge" respectively

[madbrian]

There was also the musical A Christmas Carol that had been done annually at MSG. I think it was also filmed with a familiar TV cast including Kelsey Grammer, Jane Krakowski, Jesse Martin, etc.