Oscar winner Sean Penn and Robin Wright Penn have been married for 13 years, but there have been some close calls. He filed for divorce in 2007, changed his mind a few months later, filed for legal separation in April of this year and then rescinded that petition in May. Then Sean Penn just decided to take a break from acting. Now, Robin is the one filing for divorce.

Check out some of the famous twosomes that couldn't live with ... or without ... each other.

-- Brill Bundy, Rick Porter, Andy Grieser, Darcel Rockett, Zap2it