This is a grainy, sun-drenched, hippy farce. An examination of whether married relationships can withstand/be improved by free love - it seems almost a parody of itself, showing how a bunch of rich LA types have jumped on the peace and love bandwagon and are riding it out of existence. Like all revolutions though, it had become (main)streamlined by movies like this, and as such was about to burn out. It's 1969 and the end of the line for the hippy ideal. So this movie accurately depicts where the movement had gotten to (but is this intentional?). The film itself is a dreamy, bizarre, occasionally amusing, often boring, sex farce.
Review of Bob & Carol & Ted & Alice
