Rachel Weisz - who plays a grieving mother in Peter Jackson’s adaptation of The Lovely Bones - beleives she is lucky to not take her characters home with her.

“I’ve learned to ‘switch on’ feelings for the director and turn them off when the action is over,” the 39-year-old said. “The situation becomes very real for me during that span but everything goes away once it’s over.”

The Oscar winner revealed that she was attracted to the role of Abigail Salmon because it was a type of role she had never played before. “Actors are always pretending to be something they are not. This time I had the chance to pretend to be an American woman in the 70s, a mother of three,” Weisz explained to Reader’s Digest.

Rachel also thought the film had an interesting angle which drew her to it. “I’m not sure there are many novels written from the perspective of the deceased,” she added.

The Lovely Bones opened wide in theaters last weekend.