Celebrity breakups, from the shocking to the confusing

Angelina Jolie and Brad Pitt

Let's call this one what it is: The most surprising star split of 2016 (and maybe this century). Shortly after news broke on Tuesday, Sept. 20 that Jolie filed for divorce a day earlier, Pitt released a statement to People, saying, "I am very saddened by this, but what matters most now is the wellbeing of our kids. I kindly ask the press to give them the space they deserve during this challenging time."

Keshia Knight Pulliam and Ed Hartwell

Days after former "Cosby Show" child star Keshia Knight Pulliam announced she and husband of six months Ed Hartwell are expecting their first child together, Hartwell has filed for divorce and is requesting a paternity test.

Susan Sarandon and Tim Robbins

Bleeding hearts everywhere wept a little more than usual in the summer of 2009 when Susan Sarandon and Tim Robbins, a couple for 23 years, announced they were splitting up. While they never married, the two actors, who met on the set of "Bull Durham," had two children together.

Tom Cruise and Nicole Kidman

Tom Cruise and Nicole Kidman, who were married for 10 years before divorcing in 2011, adopted two children together: Isabella and Connor.

Michelle Williams and Heath Ledger

Heath Ledger and Michelle Williams captivated America with their performances in "Brokeback Mountain" and also with their short-lived, but much publicized, romance. They met on the set of the movie in 2005, Williams got pregnant and they moved into a Boerum Hill townhouse. Their daughter was born in 2006, just before the film was released. They split later that year, and, in 2008, Ledger died in New York City.

Marilyn Monroe and Joe DiMaggio

America's sweetheart and a baseball legend? That's what made this couple so special to so many, but the romance fizzled quickly. Marilyn Monroe and Joe DiMaggio wed in 1954, but the marriage lasted just nine months.

Diane Lane and Josh Brolin

Diane Lane and Josh Brolin split up in February 2013 after eight years of marriage, according to People. While both stars first became famous in the 1980s, they didn't get together until later. They had no children.

Amy Poehler and Will Arnett

This funny couple announced they were divorcing in 2012, after nine years of marriage. Amy Poehler and Will Arnett had two kids together, and also gave the world Stranz and Fairchild Van Waldenberg in 2007's "Blades of Glory."

Jennifer Aniston and Brad Pitt

Before Brangelina and all their kids, there was just Brad (Pitt) and Jennifer (Aniston), Hollywood's golden couple. (There are just as many Jen fans out there as Angelina fans!) The couple split up in 2005 after seven years together.

Melanie Griffith and Antonio Banderas

Melanie Griffith and Antonio Banderas were married for 18 years and were considered one of Hollywood's hottest couples. They announced they were divorcing in June 2014, according to People.

Idina Menzel and Taye Diggs

After 17 years together (10 years of marriage and a 4-year-old son), Taye Diggs and Idina Menzel announced their "joint" breakup via their publicist on Dec. 12, 2013.

Gwen Stefani and Gavin Rossdale

When Gwen Stefani and Gavin Rossdale announced in August 2015 that they were splitting up after 13 years of marriage, children of the '90s everywhere sobbed. A "Tragic Kingdom," indeed. The couple has three sons.

Helena Bonham Carter and Tim Burton

Helena Bonham Carter and Tim Burton, who worked together on many of Burton's films, announced they were splitting after 13 years in December 2014.

Emma Stone and Andrew Garfield

Emma Stone and Andrew Garfield split up after almost four years of dating in October 2015. They met on the set of "The Amazing Spider Man" in 2011.

Gwyneth Paltrow and Chris Martin

Gwyneth Paltrow and Chris Martin are known for their kids' names (Apple and Moses) and for what they called "conscious uncoupling," AKA breaking up. She made the announcement on her lifestyle site Goop in March 2014.

Robin Wright and Sean Penn

Together for 20 years, Sean Penn and Robin Wright (formerly Wright Penn) split in 2009. They began dating in 1989 and married in 1996. They have one daughter and a son.

Reese Witherspoon and Ryan Phillippe

The "It" couple of the early aughts, Reese Witherspoon and Ryan Phillippe married in 1999 after co-starring in the classic cult film "Cruel Intentions." They had two kids together before divorcing in 2007.

Jennifer Garner and Ben Affleck

Jennifer Garner and Ben Affleck announced their split in June 2015 after 10 years of marriage. They have three children together.

Jack Nicholson and Anjelica Huston

This megacouple of the 1970s and '80s, Jack Nicholson and Anjelica Huston had a tumultuous, on-again-off-again relationship for 17 years. According to multiple reports, they broke up for good in 1989. (Pictured here in 1984 with director Roman Polanski in Paris.)

Jon Hamm and Jennifer Westfeldt

Jon Hamm and partner of 18 years Jennifer Westfeldt called it quits in September 2015, according to the actor's publicist.

Johnny Depp has had lots of high-profile romances (remember the "Winona Forever" tattoo?), but his relationship with model Kate Moss, from 1994-1997, was similarly well-known.

OK, their relationship definitely seemed unconventional, what with the 16-year age difference, but let's face it: Ashton Kutcher and Demi Moore were an attractive couple. The pair met in 2003, married in 2005 and split up in 2011.