Thanks to Kathryn for the heads up :-)
According to MTV.com
Twilighters, mark your calendars — starting this Friday (October 31), Fandango is making advance tickets for “Twilight” (out November 21) available. And just because it’s Halloween, a special trick-or-treat is available with every “Twilight” ticket purchase: a free download of “Bella’s Lullaby (Remix).