Wait, I Thought the Smurfs Were French
Donald R. McClarey
Cradle Catholic. Active in the pro-life movement since 1973. Father of three, one in Heaven, and happily married for 41 years. Small town lawyer and amateur historian. Former president of the board of directors of the local crisis pregnancy center for a decade.
Mrs. Van Schuyler: You perfectly foul French upstart!
Hercule Poirot: Belgian upstart, please, madame.
– Death on the Nile (1978)
https://www.imdb.com/title/tt0077413/quotes/qt0428514
The Smurfs is a Belgian comic franchise centered on a fictional colony of small, blue, human-like creatures who live in mushroom-shaped houses in the forest.
https://en.wikipedia.org/wiki/The_Smurfs