Monty Python fans have a great reason to go to Sketchfest: Tonight, the the Castro Theater will host an onstage discussion with Monty Python's Terry Jones, followed by a 35th Anniversary screening of Monty Python and the Holy Grail. If it's not enough to be quoting Grail all day Friday, stick around afterward for Monty Python's Life of Brian—introduced by director Terry Jones—and let the guys remind you to always look on the bright side of life. The discussion starts at 7 ($20), followed by Grail. Life of Brian starts at 10 ($10).