Continuing our recent previews of upcoming SXSW films brings us to our latest, Leaves of Grass. The film, written and directed by Tim Blake Nelson and starring Edward Norton, Kerri Russell, Susan Sarandon, Richard Dreyfuss and Edward Norton, is being released by First Look Studios and we’ve got a trailer and info about the film for you today.

The film concerns Ivy League professor Bill Kincaid who receives news of the murder of his estranged identical twin brother, Brady (both played by Norton), in a pot deal gone bad. He leaves the world of academia to travel back to his home state of Oklahoma. But once he arrives he finds things are not what they seem and reports of his brother’s death are greatly exaggerated.

Soon Bill is caught up in the dangerous and unpredictable world of drug commerce in the Southwest. In the process, he reconnects with his eccentric mother (Sarandon), meets a wise and educated woman who’s chosen the simple life (Russell), and unwittingly helps his brother settle a score with a drug lord (Dreyfuss) who uses Tulsa, Oklahoma’s small Jewish community for cover.

With a cast such as this and under the direction of Nelson, who’s previous films The Grey Zone and Kansas proved his directing talents, Leaves of Grass manages to be at times dangerous, compelling and poignant. It follows a somewhat simple narrative but still provides some potential answers to a complex question: What does it mean to live a happy and constructive life?

Leaves of Grass will be released in New York and LA on April 2nd. Check out the trailer after the jump.

Late yesterday the SXSW Fim Festival, which runs from March 12-20 in Austin, TX, announced the full lineup of films that will be screening at this year’s event. And baby, it’s quite a list. Mixing big name films with intimate indie gems, the sheer number of films and the vast array of talented filmmakers is sure to be a hit with attendees and critics alike.

This lineup includes premieres of studio films such as Universal’s MacGruber, Lionsgate’s teen superhero actioneer Kick-Ass and smaller films like Tim Blake Nelson’s Leaves of Grass, Jean-Pierre Jeunet’s Micmacs, Michel Gondry’s The Thorn in the Heart and Steven Soderbergh’s And Everything Is Going Fine. With so many films to watch, it will be very difficult to find time to seem them all during the events nine days. But hell, we’re going to try.

For more on the SXSW lineup and these films and everything related to the event, be sure to visit the official SXSW site. The complete press release announcing the lineup follows:

The South by Southwest (SXSW) Film Conference and Festival is thrilled to announce the complete features lineup for this year’s Festival, March 12 – 20, 2010 in Austin, Texas. Over the course of nine days, 119 features will screen at the festival, with 55 of those having their world premieres at SXSW 2010. These films were selected from a record 1,572 feature-length film submissions composed of 1,206 U.S. and 366 international feature-length films.

Among the major films added to the lineup are: Rogue’s MacGruber, from director Jorma Taccone, Jay & Mark Duplass’ Cyrus, Bernard Rose’s Mr. Nice, Tim Blake Nelson’s Leaves of Grass, Jean-Pierre Jeunet’s Micmacs, Michel Gondry’s The Thorn in the Heart, Alexandre O. Philippe’s The People vs. George Lucas, Shane Meadows’ Le Donk & Scor-zay-zee, Steven Soderbergh’s And Everything Is Going Fine, Matt Harlock and Paul Thomas’ American: The Bill Hicks Story, Mike Woolf’s Man on A Mission, Jacob Hatley’s Ain’t In It For My Health: A Film About Levon Helm, Mark Landsman’s Thunder Soul, Daniel Stamm’s Cotton, Chris D’Arienzo’s BARRY MUNDAY, and Floria Sigismondi’s The Runaways.

They join previously announced films such as Opening Night film Kick-Ass, as well as narrative features Cold Weather and Elektra Luxx, and documentaries Hubble 3D, Lemmy, SATURDAY NIGHT and The White Stripes: Under Great White Northern Lights.

Sarah Silverman is easily considered one of the most popular female comics working today. Unfortunately with that title often comes the inability to score roles as the sexy female lead. You never see Whoopi Goldberg as the sexy girl next door or Paula Poundstone as the attractive school teacher.

Thankfully, that’s exactly what we get with Steve Buscemi’s newest dark comedy, Saint John of Las Vegas. Silverman takes on the role of the attractive, manipulative cubical neighbor to Buscemi, who is later trumped by Emmanuel Chiriqui in the film.

The film stars Buscemi as ex-gambler John, who gets lured back into the sleazy underbelly of the City of Sin by a veteran insurance fraud investigator. The film also stars a few other folks who aren’t strangers to the world of indie comedy. Peter Dinklage (The Station Agent), Tim Blake Neslon (O Brother, Where Art Thou?), and Romany Malco (Weeds).

Take a look at the first trailer after the jump, and catch Saint John of Las Vegas in theaters on January 29.