At last night’s Academy Awards, Sean Penn won Best Actor for his performance in “Milk.” In his acceptance speech, he thanked everyone from screenwriter Lance Black to Harvey Milk, but he didn’t thank his wife, Robin Wright Penn. The two have had a rocky relationship, even filing for divorce in 2007 before reconciling in the spring of last year, but was his omission more than a simple mistake? After the jump, we look at four other Oscar speeches and their effects on the winner’s relationship. Keep reading »