9. Susan Sarandon, Tim Robbins split after 23 years

Susan Sarandon and Tim Robbins, partners for 23 years and parents of two sons, split up in the summer of 2009, publicist Teal Cannady said in a statement December 23, 2009.

Sarandon, 63, and Robbins, 51, met while shooting the 1988 film "Bull Durham." He played a hotshot pitcher, she was the passionate fan who simultaneously seduced him and prepared him for the big leagues.

Sarandon and Robbins never married. Instead, they have been compared to other longtime Hollywood pairs who remain committed despite never officially tying the knot, such as Goldie Hawn and Kurt Russell.