Tribeca Film Festival opens

Ashley Olsen and Mary-Kate Olsen, right, attend the world premiere of "The Union," featured as the opening night gala screening at the Tribeca Film Festival on April 20, 2011, in New York.

Actors Robert De Niro and Jason Sudeikis attend the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York. Sudeikis is one of the festival jurors.

Chief Creative Officer of Tribeca Enterprises Geoffrey Gilmore, center, talks with juror Denis Leary, right, at the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York.

Actor Ryan Phillippe, left, and photojournalist Greg Marinovich visit the Tribeca Film Festival 2011 portrait studio on April 21, 2011, in New York.

From left, actors Malin Ackerman, Taylor Kitsch and Ryan Phillippe attend the premiere of "The Bang Bang Club" during the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Jurors Michael Cera, left, and Jason Sudeikis attend the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York.

Actress Malin Akerman attends the premiere of "The Bang Bang Club" during the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Arianna Huffington, president and editor-in-chief of The Huffington Post Media Group, attends the opening night premiere of "The Union" at the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Ashley Olsen and Mary-Kate Olsen, right, joke with one another on the red carpet at the world premiere of "The Union," featured as the opening night gala screening at the Tribeca Film Festival on April 20, 2011, in New York.

Actors Paul Dano, left, and Zoe Kazan attend the opening night premiere of "The Union," at the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Actress Aleksa Palladino attends the premiere of "The Bang Bang Club" during the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Rachel Bilson and Karl Lagerfeld arrive at the Magnum Ice Cream Film Series premiere during the Tribeca Film Festival in New York, Thursday, April 21, 2011. Bilson jumped at the chance to star in a three-part short film series directed by Lagerfeld. --------------------------------------------------------------------------------

Actor Robert De Niro attends the premiere of "The Bang Bang Club" during the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Model Lauren Hutton attends the world premiere of "The Union" at the Tribeca Film Festival on Wednesday, April 20, 2011, in New York.

Elton John talks hope for AIDS cure — AP Photo/Evan Agostini

Singer Elton John attends the world premiere of "The Union" at the Tribeca Film Festival on Wednesday, April 20, 2011, in New York.

Director Martin Scorsese speaks onstage at the opening night premiere of "The Union" at the 2011 Tribeca Film Festival on April 20, 2011, in New York.

Jurors Nora Ephron, left, and Zoe Kazan attend the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York.

Musician T Bone Burnett, left, and juror Anna Kendrick attend the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York.

Actress Rachel Bilson attends the debut of Karl Lagerfeld & Rachel Bilson's original film series inspired by Magnum Ice Cream during the 2011 Tribeca Film Festival April 21, 2011, in New York.

Reality star Jack Osbourne attends the premiere of "The Bang Bang Club" during the 2011 Tribeca Film Festival on April 21, 2011, in New York.

Actors Zoe Kravitz, left, and Rainn Wilson attend the Juror Welcome Lunch at the 2011 Tribeca Film Festival at Tribeca Lofts on April 21, 2011, in New York.

CBS News 24/7