Product Placement Blog ➞ Black Widow (2021) MovieSchwarzkopf Taft and Listerine Mouthwash in Black Widow (2021)July 9, 2021 Sergey Movie Hi! On Friday, July 9, I watched a Movie and product placement was spotted: Schwarzkopf Taft and Listerine Mouthwash in Black Widow (2021).