"I'm always quite self-deprecating, I suppose," de Ravin said, stealing the term so often used to describe Pattinson. "I'm trying to get out of that and trying to look at something from a removed point of view."
She said it's not just hard not to be critical of her own acting but also of the other actors she works with.
"It's even hard watching people, you know, in a role," she said. "Even if they're fantastic, you know that person so well that it's hard to sort of separate it."
Pattinson faced a different challenge, one he has been working on overcoming since the first "Twilight" film. Back then, he had delved so deeply into the character of Edward, it worried some of the cast and crew, and he was told not to take the character so seriously. Two years later, he said the lesson is starting to sink in.
"You can never be a character, that's the one thing I'm sort of starting to realize," he said. "I always thought that, you know, you look at 'Raging Bull' and stuff and think, 'Wow, De Niro, he's become someone else.' And I was completely convinced that there is some way that you can actually become someone else for three months."
He added, "I'm gradually starting to realize it's more about performance rather than actually some kind of physical [transformation], and it's taken me quite a long time to realize that."
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