Porco Rosso (Japanese: 紅の豚, Hepburn: Kurenai no Buta, lit. Crimson Pig) is the sixth film from Studio Ghibli and Hayao Miyazaki. At the end of the 1920s, during the reign of the Italian fascists, the Pig-headed pilot Porco Rosso, a veteran of the First World War, fought for peace in the sky around the Mediterranean as a bounty hunter. On his travels, he teamed up with the talented mechanic Fio Piccolo. When Porco is challenged to a duel by a boastful pilot, a fight begins that will forever change the lives of the two flying aces.
The following weapons were used in the anime film Porco Rosso:
Two Italian Organizzazione per la Vigilanza e la Repressione dell'Antifascismo (Italian for "Organization for Vigilance and Repression of Anti-Fascism") secret police officers can be seen with low-detailed Beretta M1923 pistols during the take-off in the channel.
Glisenti Model 1910
The third secret police officer seems to be armed with a Glisenti Model 1910 pistol.
Mauser C96
One of the Air Pirates that confronts Porco and Fio carries a Mauser C96.
The Webley Mk VI revolvers are also used by pirates including the leader of the "Mamma Aiuto Gang" Capo.
Smith & Wesson Schofield
The American pilot Donald Curtis owns a Smith & Wesson Schofield revolver that he uses during the flying duel. A close-up of Curtis on a poster at the end shows the revolver has ornate engravings.
Submachine Guns
Haenel-Schmeisser MP28/II
Haenel-Schmeisser MP28/II submachine guns are seen in the hands of various pirates. The appearance of the MP28 seems to be correct since the movie's plot takes place in the late 1920s (1929 to be precise if you look at Porco's "Mare Blu Cinema" magazine at the beginning). It can also be almost identical MP18, however.
Rifles
Lee-Enfield No.1 Mk.III*
A pair of Air Pirates carry Lee-Enfield No.1 Mk.III* rifles that look almost exactly like those from Miyazaki's 1986 movie Castle in the Sky. The SMLEs are equipped with No. 4 muzzles and (sometimes) with 5-round magazines from the Lee-Speed Sporting rifles, or Lange Visier rear sights from the Gewehr 1898.
Mauser Rifle
Some Mauser rifles are also used by the pirates that have characteristics from many Mauser variants. Having the full-length barrel, turned-down bolt handles and under-barrel sling swivels like a Karabiner 98b, some are seen with hooded front sights from a Karabiner 98k. Due to the setting of the movie, the Kar98b would be more accurate or a Mauser Standard Modell.
Aircraft Machine Guns
Custom Maxim lMG 08
Porco purchases an Aircraft Pattern MG08 Maxim with a custom barrel jacket for his red Savoia S.21 plane in the Milan gunshop. He is offered some special armor-piercing rounds for it, what he gratefully refused. It seems this is the only Custom Maxim because, in Piccolo's Repair shop, the left MG is an lMG 08/15.
As Fio opens the weapons' hatch of Porco's plane, the left Maxim can be seen what is a lMG 08/15. Other pairs of the guns are seen during Porco's memories of a dogfight in the Summer of 1918, fixed on Austro-Hungarian Hansa Brandeburg CC aircrafts. Despite being the K.u.K. Luftfahrtruppen, the planes were equipped with either German Maxim or their own Schwarzlose Machine Guns.
Browning M1919
Donalds' Curtiss R3C-2 plane is armed with two Browning M1919 variants that can be cranked.
Breda-SAFAT
Savoia Marchetti S.55 flying boats of the Regia Aeronautica can be seen armed with Breda-SAFAT machine guns.
Unknown
Machine Guns
Maxim MG08
One of the pirates is briefly seen carrying a heavy Maxim MG08 machine gun.
What appears to be a Soviet Degtyaryov DA-2 twin machine gun is seen during the flying duel mounted on a tower.
Other Weapons
Stielhandgranate
Many Stielhandgranaten are used by the pirates, which have various characteristics from different stick grenades. The movie grenades are equipped with a top head on the warhead (similar to the Model 43 Stielhandgranate), a pull cord coming out of the stick like the Model 15, or the Italian Type "L" AT grenade.
Aircraft cannon
A large cannon that appears to be a very chunkily-rendered Solothurn S-18 20mm Anti-Tank Rifle given the stock, sight, and side-loading, appears mounted on one of the pirates' planes. It loads using some kind of stripper clip arrangement rather than its usual box magazine, and the barrel and rounds are scaled up to the point it resembles a small tank gun.