Nov.  18 

Roy Harper had a song called "Grownups Are Just Silly Children" and Raffi had one for kids about "shaking your sillies out." Why do these come to mind? Because we're telling you about The Buffy the Vampire Slayer Sing-A-Long, which was invented right in Boston (well, Brookline) by the Coolidge Corner Theatre's former program manager Clinton McClung in 2004. MTV News did a feature recently and this event has been staged in New York, Pittsburgh, Austin and elsewhere. Lordy, it's sweeping the nation! What it is: Buffy fans go to the upstairs theater at the Coolidge at midnight on Nov. 18. They watch Buffy on the big screen, sing along (it's subtitled) as a live Buffy cast leads the audience through the "Once More With Feeling" episode from the sixth season. There are finger puppets and streamers, kazoos, sirens, vampire teeth, waving underwear. (These come in a goodie bag you'll be handed.) You can cheer, you can boo. There's a pre-show Buffy-oke conbtest and an all-Spike trivia contest. About all you could ask for as a cinematic experience, or at the least, a lot of bang for the buck. Says Buffy fan/current program manager George Bragdon: "It is most similar to 'The Rocky Horror Picture Show.' There's a large crossover audience. It's highly excitable, a charged atmosphere." This is the Coolidge's fifth Buffy. Bragdon says he was there for the first, a sold-out show with everyone holding hands, singing and whooping it up. If Bufffy's your gal, get your tix early and get ready to get giddy. They're $9.50.

290 Harvard St., Brookline, 617-734-2500 coolidge.org