Cast member Johnny Depp is seen at the Great Big Ultimate Fan Event celebrating the upcoming film "Alice in Wonderland" in Los Angeles on Friday, Feb. 19, 2010.
Saturday, Feb. 27, on "48 Hours Mystery," learn more about why Depp and other celebrities are publicly supporting and believe in the innocence of a trio of convicted murders known as the West Memphis Three.
AP Photo/Matt Sayles
Cast member Anne Hathaway, left, and director Tim Burton speak onstage at the Great Big Ultimate Fan Event celebrating the upcoming film "Alice in Wonderland" in Los Angeles on Friday, Feb. 19, 2010.
AP Photo/Charles Rex Arbogast
Actor Vince Vaughn, right, sits courtside with his wife, Kyla Weber, during the second half of an NBA basketball game between the Chicago Bulls and the Philadelphia 76ers, Saturday, Feb. 20, 2010, in Chicago. The Bulls won, 122-90.
AP Photo/Lefteris Pitarakis
British actor Colin Firth, right, accompanied by presenter Kate Winslet, poses with his award after winning Best Actor in the movie "A Single Man," in the media room at the British Academy Film Awards 2010 at The Royal Opera House in London, Sunday, Feb. 21, 2010.
AP Photo/Lefteris Pitarakis
British actress Carey Mulligan reacts as she poses with her award for the movie "An Education," in the media room at the British Academy Film Awards 2010, at The Royal Opera House in London, Sunday, Feb. 21, 2010
AP Photo/Lefteris Pitarakis
Actor Mickey Rourke, left, and his companion, Elena Kuletskaya, arrive at the British Academy Film Awards 2010 at The Royal Opera House in London, Sunday, Feb. 21, 2010.
AP Photo/Kevin Wolf
First lady Michelle Obama and musician Harry Connick Jr., center left, clap along as members of the Myrtilla Miner Elementary School glee club sing at the White House on Sunday, Feb. 21, 2010, in Washington.
AP Photo/Alex Brandon
Harry Connick Jr., holds a photo of the Musicians Village in New Orleans and a proposed building of the Ellis Marsalis Center for Music to be built in the village, during a special preview for local music students, of the talent performing at the White House annual Governors Ball, at the White House in Washington, Sunday, Feb. 21, 2010.
AP Photo/Peter Kramer
TV personality Kelly Ripa poses for pictures to promote "Cake Off," a campaign by Electrolux appliances to support The Ovarian Cancer Research Fund, in New York, on Tuesday, Feb. 9, 2010.
Pierce Brosnan & Ewan McGregor at Screening
AP Photo/Peter Kramer
Co-stars Pierce Brosnan, left, and Ewan McGregor attend The Cinema Society screening of their new movie "The Ghost Writer" in New York, Thursday, Feb. 18, 2010.
AP Photo/Peter Kramer
U2 singer and guitarist the Edge attends The Cinema Society screening of "The Ghost Writer" in New York, on Thursday, Feb. 18, 2010.
AP Photo/Peter Kramer
Actor Pierce Brosnan and his wife, Keely Shaye Smith, attend The Cinema Society screening of his new movie "The Ghost Writer" in New York on Thursday, Feb. 18, 2010.
AP Photo/Peter Kramer
Actor Ewan McGregor and his wife, Eve Mavrakis, left, attend The Cinema Society screening of "The Ghost Writer" in New York, Thursday, Feb. 18, 2010.
Andy Garcia: NASCAR Grand Marshal
Rusty Jarrett/Getty Images for NASCAR
Actor Andy Garcia shares a conversation with Carl Edwards, driver of the #99 Aflac Ford, in the garage area prior to the NASCAR Sprint Cup Series Auto Club 500 at Auto Club Speedway in Fontana, Calif., Feb. 21, 2010. Garcia was the Grand Marshal of the race and gave the command "Gentlemen, start your engines."
Katharine McPhee Sings for NASCAR
Photo by Rusty Jarrett/Getty Images for NASCAR
Former "American Idol" runner-up and singer Katharine McPhee sings the National Anthem prior to the NASCAR Sprint Cup Series Auto Club 500 at Auto Club Speedway in Fontana, Calif., Feb. 21, 2010.
Lauren Conrad at NASCAR Race
Photo by Jason Smith/Getty Images for NASCAR
Television personality Lauren Conrad looks on from the pit road during the NASCAR Sprint Cup Series Auto Club 500 at Auto Club Speedway Fontana, Calif., on Feb. 21, 2010.
Zachary Levi Cheers Lakers
AP Photo/Jason Redmond
Actor Zachary Levi watches the Los Angeles Lakers in the second half of their NBA basketball game in Los Angeles, Tuesday, Feb. 16, 2010. The Lakers won, 104-94.
AP Photo/Gus Ruelas
Actor Jake Gyllenhaal attends an NBA basketball game against the San Antonio Spurs and the Los Angeles Lakers, Monday, Feb. 8, 2010, in Los Angeles. The Lakers won, 101-89.
AP Photo/Dave Allocca, StarPix
Robert Kennedy Jr., right, hosts a reception for director James Cameron, left, in honor of Cameron's new film "Avatar" in New York on Tuesday, Feb. 16, 2010.