Ffolkes (US release title) or North Sea Hijack (original UK release title) is a 1979 British action movie directed by Andrew V. McLaglen and starring Roger Moore as eccentric freelance counter-terrorism consultant Rufus Excalibur ffolkes (with two lower case f's).
The following weapons are seen in the movie Ffolkes:
Lou Kramer (Anthony Perkins), the leader of hijackers, and several of his men are armed with SIG P210 pistols.
M1911A1 Pistol
Robert Ackerman (Anthony Pullen Shaw), one of Kramer's men, is armed with M1911A1 pistol in one scene (later it switches to Inglis Hi-Power). When Rufus Excalibur ffolkes (Roger Moore) covertly infiltrated the ship he is also armed with M1911A1 pistol.
Harold Shulman (Michael Parks), the second-in-command of hijackers, is armed with Smith & Wesson Model 29 revolver. In several scenes he changes it to SIG P210 pistol and back.
Webley Revolver
A Webley revolver is seen in hands of Rufus Excalibur ffolkes (Roger Moore) when he is preparing his bag for a trip to London. It is hard to identify the revolver for sure but most likely it is Mk VI.
Llama XVIII Especial
When Rufus Excalibur ffolkes (Roger Moore) went to negotiate with the hijackers he had a pocket pistol hidden inside his naval cap. This pistol is a a Spanish Llama XVIII Especial .25 calibre pistol.
Submachine guns
Uzi
Two of the hijackers, Saburo Yakamoto (Sabu Kimura) and Eiji Tanaka (Eiji Kusuhara), are armed with Uzi submachine guns.
Other weapon
Spear Gun
Rufus Excalibur ffolkes (Roger Moore) and his men use spear guns in the final scene.
Hand Grenade
Rufus Excalibur ffolkes (Roger Moore) use live grenades when training frogmen.
Limpet mine
Limpet mines are used by Kramer's men to mine oil production platform "Jennifer" and oil drilling rig "Ruth".