While batty inventor Szalinski (Moranis) boffins away in the attic, his kids Amy and Nick (O'Neill, Oliveri) are left to shift for themselves. Russ Thompson (Frewer), his sports-jock neighbour, looks on in scorn, but is comically insensitive to the needs of his own two sons (Brown, Rushton). The Thompson boys whack a baseball through the attic window, the as yet imperfect shrinking machine is activated, and the warring youngsters wind up tiny, swept into a bin-bag and dumped at the bottom of the garden. During their trek back, there are wonderful moments like a flight on the bumble bee, a fall into a giant flower, and the adoption of a discarded lego brick as a night shelter. Perhaps unavoidably, there are inconsistencies of scale, and though the characterisation is generally warm and believable, there's still the 'Your sister's all right - for a gurl!' syndrome. Sterling entertainment, though.