When Terry Gilliam asked British animation legend Bob Godfrey if he could use his camera to recreate his animated sequences for the movie, Godfrey didn't know who Gilliam was and told him to "bugger off". Later, Godfrey found out that Gilliam was a member of the Monty Python team and helped him complete the sequences for the movie.
Monty Python's first feature film. It was intended to introduce American audiences to Monty Python's comedy, but it made much more money in the UK, where viewers had already seen most of the sketches on Monty Python's Flying Circus (1969).
The supermarket advert shows a price as "9np or 1/9". This was common in UK films of the early 1970s, as the country was decimalising its currency. Prices went from pounds, shillings, and pence (20 shillings to the pound, 12d (pence or pennies) to the shilling) to pounds and what were then called 'new pence' (100p to the pound).
The movie was filmed between the first and second seasons of Monty Python's Flying Circus (1969). It contains several sketches that had been written for the second season but not yet performed, including the "Hungarian Phrasebook" sketch.
According to Terry Gilliam, executive producer Victor Lownes, who primarily represented Playboy magazine (which funded the movie), insisted on getting an animated credit equal in size to those of the group members.
An obstacle course in the "Upper Class Twit of the Year" scene has the competitors jumping over matchboxes. Vivian Smith-Smythe-Smith is the only one who "refuses" (doesn't jump). In the series, Nigel Incubator-Jones was the one to refuse.
According to an article by John Ezard published in London's The Guardian newspaper on Saturday 8th October 2005, "the line 'And now for something completely different', usually attributed to Monty Python's Flying Circus (1969), was coined with perfect seriousness by someone completely different - the late Christopher Trace, founder-presenter of Blue Peter".
The movie's humor reminded producer Patricia Casey of the Keystone Kops: no holds barred, outrageous, preposterous, daredevil, zany, violent fun. Casey said: "It's the kind of thing the English do very well. They're so free, they create a fantastic situation, inject a few serious home truths about sex or pompous attitudes, then tear it down." Producer Patricia Casey, aka Pat Casey, was an American citizen footloose in London and had the time of her life making this movie: "We've nothing to compare with it in the States. It's so brilliantly 'visual' that anybody who enjoys laughing, anywhere in the world, will appreciate it".