< L'Été les petites culottes s'envolent

• Blondes Like It Hot may be a mis-attribution, the European English title, or the title of the soft version
• Flying Skirts
• Marilyn - Ein Sommer voller Leidenschaft Herzog 1 hr 24 mins
• Prenez moi! video title
• Ein Sommer voller Leidenschaft West Germany
• Ungezähmte Marilyn

• Dominique Saint Claire uncredited, plays Hugo's wife
• Nathalie Idoux possibly as Esther Allen (German release), possibly as Fabienne Ernst in some versions, plays Bridget
• Olinka Hardiman plays Laura
• Sophie Pressle probably as Sophie Zillers, plays Chloe

I have a copy of the soft version minus the opening sequence; so cannot tell who is credited (or who as) and who is not.

Males -

• John Oury plays Hugo
• Christophe Clark plays the lover of Hugo's wife
• Gabriel Pontello plays a drifter helped by Bridget
• the farmer

Laura and Chloe go on a summer holiday in Switzerland, near the holiday home of Hugo, his wife and daughter Bridget. Chloe is Hugo's mistress. Laura telephones her boyfriend from the hotel lobby, watched by Hugo and he follows her to her room and they have sex, not realising each other's identities. Bridget helps Gabriel Pontello get away from a farmer who is chasing him. Dominique Saint Clair meets her lover Christophe Clark who is camping in a field. Laura and Chloe go for a walk and sunbathe on a bridge across a stream. Christophe spots them and sneaks up and has sex with Chloe. Gabriel Pontello has sex with Bridget as she leans out of a window talking to her mother. Laura and Chloe spy on Christophe and Dominique Saint Clair having sex in the tent. They then meet Bridget who invites them to lunch. All the cast then have lunch and then Hugo and wife drive off. The rest then party in the barn. Hugo and wife turn back and for some strange reason go into the barn and have sex watched by the rest from behind the hay bales.

The IMDB credits for this seem to be conflated with those for Rosalie se découvre.