King Arthur is looking for knights to join his Round Table at Camelot and then help him on a quest to find the Holy Grail. Unfortunately finding these knights isn't very easy. Finally, he does have his knights and he sets off on a quest, crossing bridges of death, fighting killer rabbits and finding a nice shrubbery...
It is all very silly of course and has a number of iconic comedy moments shown often in clips or skits, if you haven't seen this film before you probably have seen quite a lot of it already in clips and memes. It doesn't make much sense, correction it doesn't make any sense. Maybe a little more coherence would have improved the film, but 'tis but a scratch!
All the gang (John Cleese, Michael Palin, Graham Chapman, Eric Idle, Terry Gilliam and Terry Jones) are here in various roles. It's liberties with English history are rather large, as is the inventiveness.