I too was disappointed, but not for the reasons cited in the previous comment.
Instead, I found the film very hard to follow, with lots of academic buzzwords (interviewer Pasolini refers to "the sex problem" at least 20 times), not all of it subtitled, and subtitles that faded out of legibility against light backgrounds.
The movie was visually unappetizing, in part because of inconsistent and often inept camera work, and in part because of a sloppy transfer to tape that washed out the middle tones and often made it hard to see and read people's faces.
The most annoying element was the recurrent muting of the voice tracks (and of course the accompanying sub-titles) that was labeled "self-censorship." Was this a comment on official censorship of the time? I get the impression that the most interesting answers were lost to the audience through this process.
An interesting and meaty idea from a provocative and often great filmmaker, undercut by directorial inexperience and poor repackaging.