According Wikipedia "...Boys in the Sand is a landmark, American gay pornographic film. The 1971 film was directed by Wakefield Poole and stars Casey Donovan. Boys in the Sand was the first gay porn film to achieve crossover success and one of the earliest porn films of any genre to gain mainstream credibility, preceding 1972's Deep Throat by nearly a year....".
The actors are all right, especially Casey Donovan, he's hot. But the quality of the movie is not very good, not enough lightning, some scenes were too dark. From begining to end, there is director's commentary which I don't like at all, but I couldn't do anything about that since I don't have the original one, I just got this movie file from the net. Besides that, this movie is okay to watch. With the budget only $8.000, the film had grossed $140.000 in six months and was continuing to open in theatres across the United States and around the world. It also helped Casey Donovan to become an underground celebrity.