HBO has ordered a fifth season of its award-winning drama Big Love, according to The Hollywood Reporter. Ratings for the current fourth season of the show, which follows a polygamous family headed by ambitious businessman (Bill Paxton) and his three wives (Jeanne Tripplehorn, Chloe Sevigny, and Ginnifer Goodwin), are up an average of 13 percent over last year. The series’ main cast is expected to return — with the exception of Dear John star Amanda Seyfried, who announced her departure in December.