Pretty Little Liars promotional photoshoot

Lots of people were unsure if Jennifer was right for the part, but with a new hair color and some make-up, she looks like Katniss now.

When she was offered the role, her response as a mixture of elation and anxiety.“I knew that as soon as I said yes, my life would change,” she says. “And I walked around an entire day thinking ‘It’s not too late, I could still go back and do indies, I haven’t said yes yet, it’s not too late.’”

But who wouldn't want to be Katniss? “I love this story,” she said, “and if I had said no, I would regret it every day.”

In an interview, Jennifer...