Melissa Rosenberg: 'Breaking Dawn' Script Almost Ready for Battle

[caption id="attachment_4988" align="alignright" width="220" caption="Summit"]Kristen Stewart in "The Twilight Saga: Eclipse"[/caption]

For "Twilight" fans, questions about how "Breaking Dawn" will translate onto the big screen extend far beyond the wedding, honeymoon and already infamous birthing scene. Like any good fantasy young adult series, the closing chapters involve one big, final showdown. Stephenie Meyer's series is no exception.

Screenwriter Melissa Rosenberg tells MTV News she's nearly finished – 75 to 80 percent, to be precise! – but it's that later scene that's causing the most head-scratching.

"The final battle sequence is the biggest challenge because it lasts 25 pages," she says. Read what else she has to say at MTV.com.

Kristen Stewart, Robert Pattinson and Taylor Lautner report to the "Breaking Dawn" set in November.