You can't find too much fault in a movie that actually mines a decent acting performance out of Tom Arnold of all people. Happy Endings centers on the lovely Maggie Gyllenhall as a singer sleeping with both Tom and his gay son (Jason Ritter). Add to the the never dull Lisa Kudrow out to find the son she gave up for adoption, with comedian Steve Coogan brooding over the fact that his lover (David Sutcliffe) provided the sperm that produced a baby for their two best lesbian friends (Laura Dern and Sarah Clarke). Writer-director Don Roos is an expert at blending angst with comedic wit, as he did so remarkably in The Opposite of Sex, but here he's more coasting. Happy Endings is a film that rambles and loses any sense of center. Still, Roos is not one to shy away from provocation. He's got that going for him.