Internet movie maven Harry Knowles annually celebrates his birthday with a 24 hour movie marathon at Austin's Alamo Drafthouse. This year's Butt-Numb-A-Thon has just ended in Austin, offering the select group of attendees a sneak peak at a number of unreleased films (and a few classics). Matt Dentler from SXSW was there and has posted dispatches (and photos) on his blog, and reported that among the new films sneaking this year included, "King Kong", "Sympathy for Lady Vengeance", "District 13", "The Descent", and "V For Vendetta".