This 1975 comedy includes the line "We are the knights who say Ni!"
[DOC] [TLE] Trophy Unlocked: Stubs - Monty Python and The Holy Grail [PAR] Mar 9, 2013 ... Monty Python and The Holy Grail (1975) Starring: John Cleese, Graham ... 
rehash of sketches from the comedy troupe's first two seasons (called series in 
Britain) ...