Kristen Stewart better prepare herself as she's going to have a hard time filming the Twilight Saga: Breaking Dawn.

There has been a lot of talk about the scene which depicts Renesmee's birth and  the film's screenwriter, Mellisa Rosenberg has revealed that the birth scene will be just as 'intense' as it is in the book. It looks like KStew will have her work cut out for her!

She told E!Online: "We're working on it. And we're working on it to be as intense as it is in the book.”

But that doesn't necessarily mean it will be bloody: "I don't think it's about the amount of blood you show.

"It's on their faces. It's all from Bella's point of view when you're seeing what's going [on]. It should feel visceral. I think it's going to be pretty intense."

Are you excited for Part 1 of Breaking Dawn? We can't wait to see Robert Pattinson and Kristen back together as Bella and Edward!

Eclipse...