This is basically like a German "sex report" film in that, rather than being a single plot-line, it is actually a series of vignettes showing the active (VERY active) sex lives of international airline stewardesses. Of course, it eschews the ridiculous "person-on-the-street" interviews of some of the other "report" films and it doesn't even really have a central frame story tying all the random scenes together. You might also feel a little less like a pervert watching it since it is about adult airline stewardesses rather than schoolgirls like some of the other films (even though pretty much the same group sexy German and Scandavian actresses were in ALL these German "report" films). I should also mention these are early 1970's airline stewardesses (a movie about the sex lives of some of the ill-tempered beasts that work as "flight attendants" today might be better classified as a horror movie).
This movie was directed by Swiss sleazemeister Erwin Dietrich and features the uber-sexy Ingrid Steeger as perhaps the most recognizable actress in the opening vignette. (She meets an older guy on a plane, shags him rotten, and THEN gives him a tour of the city). Like Dietrich and Steeger's earlier collaboration "I, a Groupie" this is kind of a sexy travelogue with (the exteriors at least) filmed in world cities like Munich, Copenhagen, and New York City (which I, at least, appreciate more than most modern-day sex films that seem to take place entirely in some producer's condo in the San Fernando Valley). There's an especially good sequence of a pornography-fueled orgy in swinging Denmark. Unlike "I,a Groupie" or some of the other "report" films, however, this doesn't have wild shifts of tone where some stories are light-hearted and silly and others downright disturbing. This movie is just consistently silly.
As Dietrich-Steeger films go I'd rank this ahead of "The Young Seducers", but definitely behind "I, a Groupie". It's better than most "report" films and pretty much all the American sexy stewardess films I've seen though . Give it a gander.