Things you never knew about Monty Python and the Holy Grail (1975) Sources: The Telegraph, Palin, Michael (2006). Diaries 1969–1979: The Python Years; Monty Python and the Holy Grail DVD extras; The Guardian; Eric Idle Twitter; Rolling Stone; UK on Screen; Li, Martin (2011). "Scotland on Film". Glasgow & the River Clyde.; Hotdog magazine; Der Speigel; SBS; Larsen, Darl (2015). "Title and Credit Sequence". A Book about the Film Monty Python and the Holy Grail: All the References from African Swal