The Black Knight.
Unmitigated fromage, just hilarious, Alan Ladd as a blacksmith who gets labelled a coward and learns Knightery and kicks Peter Cushing's ass:
Wiki:
Shooting took place at Pinewood Studios.[5] Half-way through production, Bryan Forbes was called in to do some rewriting of the script (he is credited as "additional dialogue by..."). According to Forbes's memoirs, Alan Ladd's wife, Sue, had script approval and objected to a scene where her husband's character stole a horse.
'During a script conference she repeated "Alan Ladd does not steal a horse, period. I'm telling you. He steals a horse, we lose the Boy Scouts Association and the Daughters of the American Revolution, to say nothing of his fan club."
Irving [Allen], the senior producer was equal to the occasion and replied "He's not stealing a horse, Sue, he's borrowing a horse. You know like a Hertz car." "So, show me the difference" said Mrs Ladd, "You keep the stolen horse in and you start looking for another star because we're gonna be on the next plane home."
"How would it be" I said, "if we kept all the action up to the point where Mr Ladd disposes single-handedly of the attacking Vikings, then he runs to a sentry and says "Is that the horse I ordered?" The sentry nods in agreement and Mr Ladd jumps on the horse and rides over the drawbridge?" "Yeah, I'll buy that" said Mrs Ladd and that is what we shot.'
