David Thomson

“Coma … is only a thriller with an unusually real setting and a crazy plot. It is made decently, without ulterior ambition. But Geneviève Bujold is so remarkable in it that she makes one conscious of how a steady career has neglected her real virtues. She is past that hard sexual radiance so arresting in La Guerre est Finie (66, Alain Resnais). But her face is as sharp and watchful as ever, more drawn than ripe now. She ignores the silliness of Coma and goes about her job like a young mother with too much to do. A gritty actuality lies within her dramatic vulnerability, and in Coma it amounts to heroic courage and persistence. I suspect she could do as much to sustain a far better film, and I anticipate in the next few years either a trailing away or a few parts that reveal a great actress.”

David Thomson
A Biographical Dictionary of Film
Second Edition (1980), p 76