If it's possible for a movie to be intriguing and tedious at the same time, Inside Deep Throat has mastered the art of it. Having a famous porn film that cost $25,000 to make and went on to make over $600 million as your subject could make any movie intriguing. But the intrigue wears off about a half hour into the movie. It's clear that the film-maker knew he had a good idea for a documentary but as time went on, he found that there was not nearly enough interesting material to last over 45 minutes. It would have been just the perfect amount of time to fill an hour of E True Hollywood Story, but the NC-17 rating would make that hard.
The best thing about the movie is the vivid creation of the sexual revolution that spun through the US during the time of the film's original release. The life of the main character was also interesting. But these two things don't drive the movie. The rest of the movie may be fascinating, but the story telling is not fascinating. The script is scattered and choppy. The interviews are hardly believable also. Who actually believes that a bunch of porn movie makers who made a porn with such a stupid subject matter actually did it to try and change how Americans thought about sex? They were making a porn! They wanted money, among other things. Nobody sat down and thought about changing America with Deep Throat.
In the end, the movie is something you won't forget, but even a few hours after seeing it I can't remember why I found it interesting anyway.