Choreographer Amy O'Neal and costume designer Macks Leger share an artistic credo: Both seemingly will try anything as long as the result looks fabulous. In "mockumentary," O'Neal, composer/co-director Zeke Keeble, and a talented ensemble of dancers and collaborators create a work that is eclectic, funky, and occasionally incomprehensible, but that invariably looks fabulous. If you care about modern dance, you shouldn't miss it. "Mockumentary" lacks the high concept of O'Neal's and Keeble's previous work, "convenience," but in many ways is the more enjoyable for it.