Monty Python and the Holy Grail is written by Graham Chapman. Graham Chapman starred in Life of BrianLife of Brian is written by Eric IdleEric Idle : `Episode segment`: Michael Palin. Michael Palin starred in A Fish Called Wanda
[Human]: I loved Monty Python and the Holy Grail. Can you recommend something similar? [Assistant]: That was a great movie. The Life of Brian was another Monty Python movie. Do you like John Cleese and Eric Idle?  [Human]: I love them. I also really like Terry Gilliam and Spike Milligan. So anything that is done by them is great. 
A Fish Called Wanda and Time Bandits are not Python movies but along the same lines. 