When: 2003-2004

Almost Famous' golden god Billy Crudup endeared himself to women nowhere when in 2003, after nearly seven years together, he left long-time girlfriend Mary-Louise Parker while she was seven months pregnant with the couples' first child. The reason? He fell in love with actress Claire Danes while they were shooting the forgettable Stage Beauty. After leaving his baby mama in the dust, Crudup and Daines dated for three years. They broke it off in December of 2006.