Laura Kipnis in Slate:
Enter Deep Throat, the goofy 1972 porn classic devoted to the problematics of the female clitoris. And, now from producer Brian Grazer, we have Inside Deep Throat, a documentary on the making of what turns out to be—believe it or not—the most profitable movie in film history. Cultural luminaries from Norman Mailer to Erica Jong are trotted out to explain the film’s social significance; a pantheon of geriatrics and geezers recount their porno glory days shooting the film, none of which actually begins to explain the enduring success of this amateurishly made, frequently silly (bubbling noises on the soundtrack accompany most orgasms), occasionally weird (complicated sex acts involving Coca-Cola sipped through long plastic tubes), 62-minute sexual relic.
More here.