In 2000, during the shooting of their movie Proof of Life, Meg Ryan and Russel Crowe became romantically involved. This wouldn't be a big deal, as it is common that in Hollywood co-stars constantly fall in love (seriously guys, get a bit more creative), but in this case Ryan was still married to actor Dennis Quaid. *gasp, drama* Surprisingly, 2001 came right around the corner with a divorce between Ryan and Dennis. Sadly, soon afterwards Russel got back with his on-and-off girlfriend at the time, Australian singer Danielle Spencer whom he later on married, making the Ryan-Crowe love story a very short one. And yeah, it's of no surprise that Russel and Danielle aren't together either anymore, it seems as if most Hollywood marriages have a short life span.
Actor Ryan Phillippe pulled a “Sebastian Valmont” (that is a Cruel Intentions reference) when he cheated on his co-star turned wife Reese Witherspoon, in 2007. While shooting the film Stop-Loss, Phillippe started an on-going affair with newcomer actress Abbie Cornish. It was reported that Reese found out about the illicit affair after her suspicions lead her to search her hubby’s text messages and found some not so normal texts; well, not normal for a married man to receive from a co-worker. Phillippe and Witherspoon divorced and he continued to date Cornish until 2010. Both Reese and Ryan have admitted to feeling humiliation during their very public divorce