Brooding star Kristen Stewart was photographed wearing a bright green bikini on the set of Summit Entertainment’s final Twilight chapter Breaking Dawn. The pretty 21-year-old looks great, but what good is the promise of seeing her in a two-piece when the sappy flick makes you want to gouge your eyes out?

But, hey, if it gets you into the theater on Nov. 18, you might as well be up on the plot. The official synopsis reads:

After their wedding, Bella and Edward travel to Rio de Janeiro for their honeymoon, where they finally give in to their passions. Bella soon discovers she is pregnant, and during a nearly fatal childbirth, Edward finally fulfills her wish to become immortal.

But the arrival of their remarkable daughter, Renesmee, sets in motion a perilous chain of events that pits the Cullens and their allies against the Volturi, the fearsome council of vampire leaders, setting the stage for an all-out battle.

The Twilight Saga: Breaking Dawn is directed by Bill Condon and costars Robert Pattinson, Taylor Lautner, Dakota Fanning, Jackson Rathbone, Nikki Reed, Ashley Greene, Kellan Lutz, Billy Burke and Saga new comer Maggie Grace.

Part Two of Breaking Dawn will hit theaters on Nov. 16, 2012.

Enjoy the pics (courtesy of Caught on Set):