Nothing's gonna stop us now! Except possibly for some smarmy lip syncing amid a gratuitous dance scene. Bill Heder and Kristin Wiig in The Skeleton Twins. Even if you attend a screening of The Skeleton Twins with an awareness of the film's subject matter, you probably won't expect to see its main characters winding and kicking along a hillside at dusk, led by the embodiment of death, prior to the closing credits. No, if America has a danse macabre, that's hardly it, even if we (like Bergman) were to pluck from history the inspiration and form of such a procession. That's just not us. One can report this with certainty, if not relief. The problem, dear friends, the worrisome thing, is that our dance might be best performed to a Starship song. So it goes, at least, in The Skeleton Twins. Bill Heder and Kristen Wiig are Billy and Maggy, brother and sister, if not actually twins. They haven't talked in decade at the outset of The Skeleton Tw...