Anyone expecting Labyrinth 2: Back In Hot Water from the dark, Henson-produced fantasy MirrorMask will be disappointed, though creator/comic book god Neil Gaiman's many fans will thrill to finally see the writer's imagination so undiluted on the screen. With a range of influences both obvious and subtle, Gaiman takes full advantage of his ability to free associate here, Hollywood be damned. Not having to worry about merchandising (other than the obvious comic book tie-ins) or a boffo opening weekend (it is opening only in select venues to prime interest for the DVD release), wizard of aaahs Gaiman and his Sandman conspirator Dave McKean, who directs, turn their spigot of inventiveness on full-blast here.