Bryce Dallas Howard has joined the cast of “The Twilight Saga: Eclipse,” the third installment in Summit Entertainment’s vampire franchise. She replaces Rachelle Lefevre as the character of Victoria.

Lefevre originated the role in “Twilight” and appears in the upcoming sequel “New Moon,” but Summit says scheduling conflicts forced her to leave the picture.

Pic starts shooting in Vancouver in August under the direction of David Slade. “Eclipse” has a release date of June 30, 2010.

“We are incredibly happy that Bryce has agreed to come into the franchise,” said Erik Feig, Summit’s president of worldwide production and acquisitions. “Rachelle brought Victoria to great screen life and Bryce will bring a new dimension to the character. The franchise is lucky to have such a talented actress as Bryce coming in to fill the role.”

Howard most recently appeared in “Terminator Salvation.” Her credits include “Spider-Man 3,” “Lady in the Water” and “The Village.”