'Twilight: Eclipse' begins filming

Robertpattinson_twilight_290 It's as if a million voices suddenly squealed out in delight...

Principal photography -- that's the one where all the stars are finally on set -- began today on "The Twilight Saga: Eclipse." Robert Pattinson, Kristen Stewart, Taylor Lautner and the gang are in Vancouver starting the next chapter of the vampire-human-werewolf love triangle.

See pictures from 'The Twilight Saga: New Moon.'

"Eclipse" follows bloodsucker Edward and human Bella as they try to come to terms with their romance against the backdrop of a sudden increase in vamp attacks. As if the series wasn't getting enough attention, the third installment made headlines when Rachelle Lefevre was replaced in the role of villain Victoria by Bryce Dallas Howard.

"New Moon," meanwhile, opens Nov. 20.

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