The release calendar is shifting once again, this time in favor of some popular vampires. According to The Hollywood Reporter, Summit Pictures' Twilight has stepped into the recently-vacated release date of November 21, which was held by Harry Potter and the Half-Blood Prince until it was announced yesterday that the film will be pushed back to next summer.

Twilight was originally scheduled for a December 12 release, but in the wake of Harry Potter and the Half-Blood Prince's release shift, they took advantage.

"When Warner Bros. decided to move Harry Potter and the Half-Blood Prince to the summer of 2009, we saw a unique opportunity to slot in our film which has been gaining tremendous awareness and momentum over the past several months," Summit's Rob Friedman said.

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Friedman added that they were not trying to replace the Potter franchise for this year. "We by no means are trying to fill the shoes of the incredible Potter franchise for 2008, rather we are just looking to bring the fans of Stephenie Meyer's incredible book series the film as soon possible from a programming perspective."

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