“Periwinkle Pussycat”
Lord Love a Duck (1966) Dir: George Axelrod
The ‘cashmere sweater’ scene, where Barbara (Tuesday Weld) goes shopping with her Dad. (The uploader describes this scene as ‘sexy, surreal, disturbing’.)
IMDB: A bright satirical comedy about an innocent high school girl granted her wishes by a student prodigy. A broad satire of teenage culture in the sixties, its targets ranging from progressive education to beach movies.
Seriously - why am I only just finding out about this movie?!