Barbra Streisand's stepson, actor Josh Brolin, was arrested Sunday on a charge of spousal battery after an argument with his wife, Diane Lane, at their Los Angeles home. Brolin posted $20,000 bail and was released. "There was a misunderstanding," the couple's rep told the New York Daily News. "Diane called the police. Josh ended up being arrested for the lowest-end misdemeanor charge of domestic battery."