Timcop’s review published on Letterboxd :
Danny Kaye's masterpiece, if you'll allow that Danny Kaye can star in a comedy masterpiece. A tour-de-force performance if there ever was one, Kaye plays the oft-hypnotized, mostly competent member of a rogue band plotting to overthrow the king and restore England to its rightful heir. He and his commanding officer, played with cunning precision by the wonderful Glynis Johns, stumble upon the opportunity to infiltrate the castle as the king's bumbling court jester, after hitting John Carradine on the head with a 2x4, of course. Hijinks with a capital "H" ensue.
Also, the vessel with the pistol and the flagon dragon brew true pazzel wazzle.