Not to be confused with the James Bond novel and film "Moonraker". Ironically, George Baker appeared in two Bond films: On Her Majesty's Secret Service (1969) and The Spy Who Loved Me (1977).
Prior to a fight with Gregg, a sword is pushed into the Moonrakers chest, and it bends without causing any damage. In the actual fight, this same non piercing point slashes through shirt and skin leaving a lot of damage.
Several proclamations are seen in which Oliver Cromwell is described as "Lord Protector". The film in set in 1651; Cromwell did not adopt that title until 1653.