I just love jumping into someone else's life. It is a relatively cheap way to experience things you would be too scared to contemplate in your own life.
In terms of jumping into a character's skin, I try to immerse myself in the role as much as possible to bring me closer to them. All I do is what's required to achieve what I want to achieve.
I got involved in script development from the beginning. It was nice to see how a film gets made right from the beginning. It was quite hands-on for me.