Reviews provided by RottenTomatoes
New York Times:
It's not every film maker who credits special thanks to both Luis Bunuel and Dee Dee Ramone, but then Mr. Cox doesn't fit any recognizable mold.
A few too many moralistic foreshadowings, but most of the time Cox's situations and characters develop on their own eloquently entropic terms.
Why then should anyone of sane disposition wish to see the film? Because it is still a love story, and a very touching one at that.
Sid and Nancy is the definitive pic on the punk phenomenon.
The only thing that is sustained in Sid and Nancy is a tone of clinical disinterest that leaves you asking why Cox would want to make a movie about them.
Though dark and harrowing, explicit and unsparing, the movie proves a riveting biography of these burnt-out icons and their iconoclastic half-decade.