In “Xanadu” did Clinton McClung a midnight sing-along decree.
The guy who got people to sing along to the musical episode of “Buffy the Vampire Slayer” (”Once More With Feeling”) has sunk his teeth into a new audience-participation project — and this time, he has to believe it’s magic. Or something. (McClung also has his eyes on Joss Whedon’s new Web series, “Dr. Horrible.”)
“Xanadu” as a movie was a bomb, but (...)