And now for something completely hilarious

With the success of "Spamalot," it may be time to revisit the films whence much of the hit musical's absurdity came. And while most of the Monty Python (below) fans we know spend almost every day running through their own personal Python marathon in their twisted, dorky heads, today they'll have the chance to see the real thing with four bizarre, hilarious films, including "And Now for Something Completely Different" (3:30 p.m.), "Life of Brian" (5:30 p.m.), "Monty Python and the Holy Grail" (7:30 p.m.), and "The Meaning of Life" (9:30 p.m.). $7.50, $25 all-day pass. Brattle Theater, 40 Brattle St., Cambridge. 617-876-6837. brattlefilm.org