Osceola is a 1971 East German Western ("Red Western") movie directed by Konrad Petzold, based on the novel "Osceola the Seminole" by Thomas Mayne Reid and starring Gojko Mitic as Osceola, the chief of Seminoles tribe in 1830s Florida.
The following weapons were used in the film Osceola:
A pair of gold-plated Colt Single Action Army Cavalry model revolvers is seen in the movie. It's worth noting that SAA revolvers are anachronistic for 1830s.
Pistols
Chatellerault Cavalry Model 1822 Percussion Pistol
Sawmill owner Richard Moore (Iurie Darie) carries a Chatellerault Cavalry Model 1822 Percussion Pistol (or very similar Model 1842) in several scenes. Same looking pistol is used by a guard (Gerhard Neubauer) in Raynes' estate. It appears to be that a single prop is reused throughout the movie.
Flintlock Pistol
Richard Moore (Iurie Darie) also uses a Flintlock Pistol of military pattern. Same looking pistols are used by Raynes' men. It appears to be that a single prop is reused throughout the movie. The gun looks authentic (not a mocked up shotgun with fake lock), though of course it "fires" by using pyrotechnical charges.
Muskets
Charleville Model 1786 Hussar Carbine
Flintlock carbines are seen in several scenes, mainly used by Osceola (Gojko Mitic). It appears to be a Charleville Model 1786 Hussar Carbine, most likely a modern replica. Probably same gun is seen in another DEFA production, Tecumseh (1972).
One or two flintlock carbines of another model are also seen. Possibly these are Charleville Model 1816 Cavalry Carbines (note the simplified barrel band and the lack of ramrod that is perfectly seen on Model 1786) but it is hard to say for sure.
Flintlock Musket
Full-length Flintlock Muskets are seen in hands of Seminole warriors and Raynes' men. This guns may be hunting guns of later era, fitted with fake flint locks (during the shooting locks remail still, like it is with flintlock pistols in the movie).
Rifles
Martini Action Schuetzen Rifle
Joe Hammer (Gerhard Rachold), Phipps (Werner Kanitz) and other overseers of Raynes' plantation use single shot Martini ActionSchuetzen rifles, popular German target and hunting guns.
Some long guns are briefly seen in several scenes.
Shotguns
Triple Barreled Shotgun/Rifle
Richard Moore (Iurie Darie) uses a Drilling, three-barreled combination shotgun/rifle with exposed hammers.
Trivia
A muzzleloading cannon is mounted on a military steamer. It appears to be a faithful replica of an early 19th century carronade, large enough for 24-pounder or 32-pounder caliber.