Holy Grail is the best MP film by far. Meaning of Life is also good. If you liked the Flying Circus show, then rent "...And now for something completely different". A collection of the best Flying Circus skits. Time Bandits and The Adventures of Baron Munchhausen were both Terry Gilliam films, one of the MP troupe members. They are very entertaining absurdist, surrealistic comedies and do feature various members of MP. If you want something a little darker and more serious, he also directed Brazil and 12 Monkeys, which are amazingly well done films as well. 12 Monkeys features both Bruce Willis and Brad Pitt in what I think are among the finest performances of their respective careers.