So much so that she tackled her Road Within role with a vengeance, her petite figure at one point weighing in at only 90 pounds.

"Losing all the weight—I've never done anything like that before," she recalled. "I put my body through so much and at first it was really hard to even have a conversation because I was so lightheaded all the time. On top of just being tired, I had to try and perform, so it was very unique experience.

"I lost like 20 pounds, so I was 90 pounds while we filmed. I tried to do it in a healthy way, but it's not a healthy thing to do—I would never tell anyone to lose that amount of weight and especially not that quickly. I basically did a cleanse and was drinking pureed vegetables and tea, and running every day."

And yes, the method acting did take its toll. She also told Complex magazine recently, "It was f--ked up, man. You could see my ribcage. I was just trying to lose more weight for the film, but I couldn't see: 'You're there. Stop.' It was scary."

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