Kristen Wiig and Bill Hader aren’t twins; they’re not even related. But the two do seem to share a secret language, like twins purportedly develop, most probably forged on and off the stage at “Saturday Night Live,” where they appeared together from 2005 to 2012. They’re currently costarring in The Skeleton Twins, a dark comedy directed by Craig Johnson (True Adolescents) from the screenplay he wrote with Mark Heyman (Black Swan), and not only are the actors’ roles synchronous, so are their performances. Read the full review here.