Flatfoot (Italian: Piedone lo sbirro) is a 1973 poliziottesco-comedy film directed by Steno.^[3] The film starring Bud Spencer obtained a great commercial success, generated three sequels. It is followed by Flatfoot in Hong Kong, Flatfoot in Africa and Flatfoot in Egypt.^[4] The title song is performed by Santo & Johnny.

In Naples the Inspector Rizzo, nicknamed "Flatfoot", defeats a gang of drug traffickers. The criminals, from Marseille, were peddling drugs using frozen fish, but Flatfoot has managed to arrest them, with the help of a boss of the Neapolitan underworld, called Manomozza (snipped hand). After the arrest however, Flatfoot discovers that Manomozza did the double game and now intends to forge an alliance with the traffickers "Marseilles". Flatfoot, thanks to the tip from a friend, finds the place and time of the meeting between drug dealers, subdues them and sends everyone to jail.

• Bud Spencer: Inspector "Flatfoot" Rizzo
• Adalberto Maria Merli: Police Commissioner Tabassi
• Raymond Pellegrin: Lawyer De Ribbis
• Juliette Mayniel: Maria
• Mario Pilar: Manomozza
• Angelo Infanti: Ferdinando Scarano, "'O Barone"
• Enzo Cannavale: Deputy Inspector Caputo
• Nino Vingelli: Old Man of Camorra

Steno stated that "For better or worse, Flatfoot was a crime flick, and I think that hadn't I directed Execution Squad, producers wouldn't have allowed me to do it."^[2]

Flatfoot was shot at Elios Film and Incir - De Paolis in Rome and on location in Naples.^[2]

Flatfoot was released theatrically in Italy on 25 October 1973 where it was distributed by Titanus.^[2] The film grossed a total of 2.972 billion Italian lira on its release making Flatfoot the first and most commercially successful attempt at mixing the crime genre with comedy.^[2]