Twitter Contest winner’s call with Chris Weitz

The Twitter contest winner who won a phone call from Chris Weitz posted her conversation with him.
You can read it all here.
Here is an excerpt:
3.) How did you decide to shoot the scene where the months are passing by, considering the books only name the months that pass?
A.) We originally thought we could use a blank screen with names of the months passing but felt that it was best to portray depression visually. CGI was used and the windows were covered by green screen. We used a robotic camera for revolvement to mimic the original hand camera as much as possible. I’m not sure if you noticed but with each revolvement the room changes, there are less pictures of her friends and the room gets more sparse.
4.) I really enjoyed the added scene with Victoria swimming towards Bella. (The book hints to the orange colour the water was reflecting, in a later revelation by Bella.) How did this scene come to be?
A.) Well, the orange coloured water wouldn’t have looked right in the scene so we put her in the water visibly. That scene was difficult because we wanted to film her swimming towards Bella but it had to be at a distance. If it wasn’t at a distance fans would wonder why Victoria didn’t just get her in that short scene, but at the same time it had to feel threatening. That was all shot in Vancouver in a swimming pool, we had the actors underwater with four or five frog men with air tubes for security purposes. We also had green screens in the water surrounding the actors so we could CGI in all the particals in the water. Theres actually a program to add in all of the floating debris and colour differences in the water after filming. Kristen had a cold at the time and was scared of drowning. We had to force her to stay in the water [laughter] But Rob was more comfortable in the water, hes had to shoot underwater scenes in the past. [Harry Potter]