In an interview with the Washington Post Jennifer Lawrence talked about splitting Mockingjay in two parts.
Lawrence had reservations about breaking “Mockingjay” into two parts — “until I heard how much money I would be getting,” she said with a long laugh.
She said she initially thought it would be better to do the finale in a single film. When she got the news that it would be done in two parts, Lawrence was in the middle of shooting “The Hunger Games,” and she re-read the books and thought about how much had to be left out in adapting the first one.
“You want everything in there, but you don’t have enough room, and you’re trying to decide what’s going to get cut and what isn’t,” Lawrence said. “So it was a relief on the last one to know that we don’t really have to cut anything. We have enough time, we have enough room to really tell this story to the fullest, and we don’t need to cut anything.
“So that’s my artistic answer. It’s a very diplomatic answer. But what I’m really thinking is yacht, yacht. My own island.”
Source" Washington Post, Mockingjay.net