And there’s a deeper movie reference to the hat also. According to vocal.media, narcotics detective Popeye Doyle (Gene Hackman) wears a pork pie hat in the 1971 movie The French Connection.

He won one Oscar for playing Popeye Doyle in “The French Connection,” and all these years later whenever someone props a pork pie hat on his head on a chilly morning, they’re inviting ...