The film, which stars Liu Ye, Aidan Quinn (who replaced Val Kilmer), and Meryl Streep, is based on a true story of a Chinese student in 1991 whose mental stability unravels when his hopes for scientific greatness are dashed due to his school's internal politics. Ye plays the student, Liu Xing, Quinn plays his cosmology professor who brings the international student onto his research team, and Streep plays Xing's other mentor, a patron of the university. The twist -- his mentally-unraveled state leads him to extreme violence.
If you're curious about the real story, and don't want to be surprised, you can google "Gang Lu" and get the details of his story. Of course, this film is only based on the events, so it's sure to have its own twists, turns, and Dark Matter. (Pun alert!) In the meantime, check out the trailer here.