1960's period piece. Strictly a snapshot of late 60's culture, made in the haphazard style that was briefly popular in the late 60's-early 70's. Of course it is irreverent- but I really don't see any relevance. It is yet another 1960's attempt to present mere irreverence as something relevant, but it wasn't relevant then, and isn't now.
However, when I saw this film in a theater in 1970 I laughed out loud, as did most of the audience. Laughed despite viewing the worst film actor I have ever seen (Wes Stern) and nothing from actress Nira Barab. The plus factor is Larry Hagman, who is energetic, extremely charismatic and funny. Joan Collins is good here too.
I would like to watch this movie again if they could edit out Wes Stern, but unfortunately he is in too many of the scenes.
As far as 1970-era culture, this movie won't make us nostalgic for those days but can only serve as a time capsule.