The first thing you need to know about "Equals" is that it's set in a world depopulated by war, where the open display of emotion is forbidden and romantic love is a crime. Your reaction to that summary will probably determine whether you can give yourself over to this film—well, that or your interest in Kristen Stewart, who plays one half of a couple that falls in love anyway, damn the consequences.
Stewart had a rough go of things early on in her career, making a lot of money starring in the "Twilight" films but also being slammed as an unconvincing actress who came across as wooden when called upon to project big, melodramatic feelings. With a bit of distance from that series, we can see that Stewart was doing heroic work in a part that didn't naturally suit her. She's a very subtle actress who excels at roles that keep the audience at some remove, suggesting a character's interior state with measured gestures and expressions. Michelangelo Antonioni would have known how to use her, and there are many moments when the director of this movie, Drake Doremus—a specialist in romantic melodramas—displays an uncanny understanding of what she can bring to a film.