Celebrity breakups of 2012 (18 images)

Longtime couple and stars of the "Twilight" vampire films, Robert Pattinson and Kristen Stewart, are reportedly on the rocks after Stewart apologized for cheating on Pattinson with the married director of "Snow White and the Huntsman", Rupert Sanders (R). Though it is unclear whether "RobSten" have officially split, Pattinson moved out of the LA home he shared with Stewart after her public apology. UPI/Jim Ruymen

Longtime couple and stars of the "Twilight" vampire films, Robert Pattinson and Kristen Stewart, are reportedly on the rocks after Stewart apologized for cheating on Pattinson with the married director of "Snow White and the Huntsman", Rupert Sanders (R). Though it is unclear whether "RobSten" have officially split, Pattinson moved out of the LA home he shared with Stewart after her public apology. UPI/Jim Ruymen

Longtime couple and stars of the "Twilight" vampire films, Robert Pattinson and Kristen Stewart, are reportedly on the rocks after Stewart apologized for cheating on Pattinson with the married director of "Snow White and the Huntsman", Rupert Sanders (R). Though it is unclear whether "RobSten" have officially split, Pattinson moved out of the LA home he shared with Stewart after her public apology. UPI/Jim Ruymen

Hollywood couple Tom Cruise and Katie Holmes are ending their five-year marriage, the actress' attorney told People.com. No reason was given for the split. UPI /Laura Cavanaugh

Johnny Depp's publicist confirmed on June 19 the Hollywood film star had broken up with his longtime partner, French singer-actress Vanessa Paradis. (UPI Photo/Terry Schmitt)

Fashion model and TV personality Heidi Klum filed for divorce in Los Angeles Superior Court on April 6 from Seal, her recording star husband of six years. UPI/Jayne Kamin Oncea