The Black Knight (1954)
Alan Ladd was one of the first Hollywood stars to film in Spain, although he left his pistols behind and fought for medieval England instead.
Part of his dueling against England’s many enemies takes place in the castle of Manzanares near Madrid, where Ladd in his gothic helmet cuts them down like so many daffodils on and off the battlements of this well conserved castle.
In fact many of the courtyard scenes at what is supposed to be Camelot were filmed at Manzanares.