Body Troopers, also known as Chasing the Kidneystone, is a 1996 Norwegian children's film directed by Vibeke Idsøe, starring Torbjörn T. Jensen and Kjersti Holmen. Eight-year-old Simon shrinks himself to microscopic size in order to travel through his ailing grandfather's body in search of a kidney stone. On his journey he meets anthropomorphic characters such as the taste buds, white and red blood cells, and the vocal cords.