The Party
Starring Peter Sellers, Claudine Longet, Natalia Borisova, Jean Carson, Marge Champion, Al Checco, Corinne Cole, Dick Crockett, Frances Davis, Danielle De Metz
It's a comedy and drama movie, and has a rating of 7.4 out of 10 from Imdb which is usually fine for this kind of movie.
Watch it here
Not found streaming from Finland.