The Bang Bang Kid (1967)
None other than Tom Bosley from ‘Happy Days’ stars in a wholly believable tale of a little town in Arizona in the days of the wild west, where a robot gunslinger and a castle brought over from Europe somehow blend in with characters suddenly changing into medieval costume, which is part of a fantasy of one of the heroines, who wants to turn a bad man good.
The castle is put to good use throughout the film as the home of one of the villains, Bullock, who owns everything except the heart of the girl he secretly loves.
At one point the locals lay siege to the castle and there is an exchange of cannon fire, with Bullock defending his battlements single-handedly, and in the final scene, Bosley uses the castle as a background to botch a redundant rocket launch in a film that will not go down in the annals of just about anything quite frankly.