Entertainment Celebrity Cheats May 17, 2011 / 3:33 PM PDT / CBS News (Photo by Andrew Burton/Getty Images) Arnold Schwarzenegger & Maria Shriver (Photo by Jed Jacobsohn/Getty Images) Christie Brinkley & Peter Cook (Photo by Thos Robinson/Getty Images) Ryan Phillipe & Reese Witherspooon (Photo by Jason Kirk/Newsmakers) Meg Ryan & Dennis Quaid (Photo by Dan Callister/Online USA) Uma Thurman & Ethan Hawke (Photo by Dave Hogan/Getty Images) Denise Richards & Richie Sambora (Photo by Amy Sussman/Getty Images for Distinctive Assets) Woody Allen & Soon Yi Previn (Photo by Stephen Lovekin/Getty Images for Tribeca Film Festival) Eliot & Silda Wall Spitzer (Photo credit by TIMOTHY A. CLARY/AFP/Getty Images) Tori Spelling & Dean McDermott (Photo by David Livingston/Getty Images) Billy Bob Thornton & Angelina Jolie (Photo by Vince Bucci/Getty Images) Jon Gosselin (Photo by Ethan Miller/Getty Images for Wet Republic) LeAnn Rimes & Eddie Cibrian (Photo credit by GABRIEL BOUYS/AFP/Getty Images) David Letterman (Photo by Dimitrios Kambouris/Getty Images) Kobe & Vanessa Bryant (Photo by Jed Jacobsohn/Getty Images) Jude Law & Sienna Miller (Photo by Stephen Lovekin/Getty Images) Hugh Grant & Elizabeth Hurley (Photo credit by SINEAD LYNCH/AFP/Getty Images) Halle Berry & Eric Benet (Photo by Kevin Winter/Getty Images) Eva Longoria & Tony Parker (Photo credit by TIM SLOAN/AFP/Getty Images) Mel Gibson & Oksana Grigorieva (Photo by Carlos Alvarez/Getty Images) John & Elizabeth Edwards (credit by: AP Photo/Amy Sancetta) Angelina Jolie & Brad Pitt (Photo credit by ANNE-CHRISTINE POUJOULAT/AFP/Getty Images) Elizabeth Taylor & Eddie Fisher (Photo Credit: AP Images) Jesse James & Sandra Bullock (Photo by Frazer Harrison/Getty Images) Tiger Woods & Elin Nordegren (AP Photo/Rob Carr) President Clinton (Photo Credit: AP Images)