In “Circumstance,” which opens in New York, Los Angeles on Friday, Ms. Kazemy, 22, plays Shireen, whose friendship with her privileged classmate Atafeh, (Nikohl Boosheri), turns erotic as they navigate a circuit of illicit parties offering drink, drugs, dancing, loud Western music and banned films. The situation becomes even more complicated when Atafeh’s troubled older brother, Mehran (Reza Sixo Safai), also falls in love with Shireen.
