Kristen Wiig knocked it out of the park with “Bridesmaids,” proving that she could fill movie theaters by running on funny. But contrary to what a lot of ex-”SNL” stars might do, she hasn’t just made the same comedy over and over again. She played slightly more serious roles in “Friends With Kids” and “The Secret Life Of Walter Mitty” and now she’s back for what looks to be even darker comedy. In “The Skeleton Twins,” Wieg and Bill Hader (AKA Stefon from “SNL”) play estranged siblings who are brought back together when both are at a crossroads in their lives. He’s a failed actor still damaged by an old relationship, while she’s unhappily married to bro-tastic meathead. Together again, they’re trying to patch things up and confront the past. Complicated relationships with siblings FTW!