Since Pirou is almost mysterious as being a pornographic filmmaker, credit is usually provided to other films for being the first. According to Patrick Robertson's Film Facts, "the earliest pornographic motion picture which could definitely be dated is usually a L'Ecu d'Or ou la bonne auberge" made in France in https://httpswwwadult-vodtv03578.hyperionwiki.com/940674/about_sex_stuff