"A musical about an old guy listening to a musical."
OLD?? Seriously, you think he is
old?????
"Any way you spin Mamma Mia! will always sound absurd."
In this day and age, it sounds quite realistic, actually.
I'm surprised no one mentioned Titanic yet. I'll never forget how the show was basically condemned on its concept long before it ever opened only to surprise critics and audiences once they actually saw it. Though I know not everyone is a fan, I loved the show (though the set design seemed unfinished) and it has one of the most gorgeous scores I've ever heard in musical theatre.
"What can you expect from a bunch of seitan worshippers?" - Reginald Tresilian