Roger Ebert gave "Midnight Express" three stars out of four in a review that concluded, "The movie creates spellbinding terror, all right; my only objection is that it's so eager to have us sympathize with Billy Hayes." Gene Siskel gave the film two and a half stars out of four and called it "a powerful film, but we leave the theater thinking it should have been more so. It was for that reason that I was persuaded to read the book, which is where I found the story I had been expecting to see on the screen." He also thought that Brad Davis "is simply not up to the lead role. He appears unsure of himself and, like the film itself, he overacts." Arthur D. Murphy of "Variety" wrote, "Acceptance of the film depends a lot on forgetting several things," namely that Hayes was smuggling drugs. Nevertheless, he thought Davis gave "a strong performance" and that "Alan Parker's direction and other credits are also admirable, once you swallow the specious and hypocritical story." Charles Champlin, of the "Los Angeles Times", was positive, writing that the film "has a kind of wailing, arid authenticity and enormous power. It is strong and uncompromising stuff, made bearable by its artistry and the saving awareness that Hayes, at least, slipped free and lived to tell the tale." Gary Arnold, of "The Washington Post", described the film as "outrageously sensationalistic" and "loaded with show-stopping fabrications,” and wrote of the protagonist that "there's never a compelling reason for sympathizing with the callow boy he appears to be from start to finish."