John Cleese explains why filming Monty Python and the Holy Grail was so horrible, reveals who saved Monty Python's Life of Brian and reviews his favorite questions audiences have asked him. » Subscribe to Late Night: bit.ly/LateNightSeth » Get more Late Night with Seth Meyers: www.nbc.com/late-night-with-seth-meyers/ » Watch Late Night with Seth Meyers Weeknights 12:35/11:35c on NBC. LATE NIGHT ON SOCIAL Follow Late Night on Twitter: twitter.com/LateNightSeth Like Late Night on Facebook: www.facebook.com/LateNightSeth Find Late Night on Tumblr: latenightseth.tumblr.com/ Connect with Late Night on Google+: plus.google.com/+LateNightSeth/videos Late Night with Seth Meyers on YouTube features A-list celebrity guests, memorable comedy, and topical monologue jokes. NBC ON SOCIAL Like NBC: Facebook.com/NBC Follow NBC: Twitter.com/NBC NBC Tumblr: NBCtv.tumblr.com/ NBC Pinterest: Pinterest.com/NBCtv/ NBC Google+: plus.google.com/+NBC YouTube: www.youtube.com/nbc NBC Instagram: instagram.com/nbctv John Cleese Did Not Enjoy Filming Monty Python and the Holy Grail- Late Night with Seth Meyers youtu.be/q1RSIwexj9g Late Night with Seth Meyers www.youtube.com/user/latenightseth