Bilson and Christensen first started dating while filming Jumper, in 2007. They officially split in 2017, but they share a 4-year old daughter named Briar Rose.
Recently, the two were spotted together in Los Angeles – perhaps on co-parenting duty.
Ryan Gosling and Rachel McAdams
The Notebook may be one of the most popular romance movies of the 21st century, but as it turns out, the main actors actually couldn’t stand each other during filming.
Gosling and McAdams may have first met on the set of the 2005 film, but they didn’t realize their feelings for one another until they wrapped. They dated for a few years until calling it quits in 2007.
Nicole Kidman and Tom Cruise
These two stars were perhaps one of the most famous married couples of the 1990s. They first met during auditions for Days of Thunder and hit it off almost immediately.
They were married and stayed that way throughout the majority of the decade, until they called it quits in 2001. The stars had two adopted children together during the course of their marriage, Connor and Isabella.
Jennifer Aniston and Vince Vaughn
These two Hollywood veterans met on the set of their 2006 rom-com, The Break-Up. Things didn’t last very long, although Vince later said that he thought she “is great.”
The couple said they spent a lot of their time trying to avoid drawing too much attention to themselves, especially considering they started dating right around her (very public) divorce from Brad Pitt.
Kristen Stewart and Robert Pattinson
Teenagers all across America swooned when these Twilight costars first took their romance off-screen in 2008. But in 2012, rumors of Stewart being unfaithful led to their ultimate split.
She later had a steamy relationship with model Stella Maxwell and is currently reported to be with screenwriter Dylan Meyer.