"The thing that really scares me is the potential of losing my freedom. I never want for my life to lose the ability to transverse the world, with freedom and ease," she says. "The freedom and ease I have worked so hard to acquire for myself."
Heard also confesses that she feels her looks sometimes hold her back, because she's put in a "Barbie box."
"I feel like I'm constantly fighting against my exterior, or this exterior presentation of myself because of how I look or perhaps because of who I'm with," she tells the women's magazine.
Heard goes on to speak out about the lack of diverse roles for women in film.
"I get a stack of scripts, like, once a month, and most of the time, you find these placeholder girls that are there to provide a bounce for the male character," she explains. "So we know he's funny because she's serious and she's mad at him. We know he's strong because she needs saving. So really her job is to validate this personality trait of our hero or male. I mean we're trying to imitate life, and it seems to me a deeply saddening injustice that we are so uncreative and uninterested in developing representations of female life."
The actress' next big-screen role is in Magic Mike XXL, out July 1, in which she stars alongside Matt Bomer, Joe Manganiello and Channing Tatum. In the meantime, her ELLE magazine issue will be available on June 23.