Penny Person (2002 film)

Penny Person : How I hooked up with a shapeshifting teenage girl and how to hide her or simply Penny Person is a 2002 American fantasy-comedy film directed by Chris Columbus.

Synopsis
Popular girl Penny Person and her best friend Casey Myers live in Nevada and their favorite hobby is spying on scientists near Area 51... One day, Penny is touched by radiations and Casey runs away as he was spotted by scientists (Penny asked him to do so)... Once in a cell at the experimenting laboratory, Penny finds out that she can shapeshift into other people as she escapes to help people in need and get even with those who wronged her...

Cast

 * Hallee Hirsh as Penny Person
 * Frankie Muniz as Casey Myers, Penny's best friend later boyfriend
 * James Fox as Archibald Myers, Casey's grandfather who is actually responsible for Penny's transformation
 * Wayne Knight as Dennis Dodgeson, Penny's neighbour who wants to capture her to get rich
 * Gotz Otto as Nazi Doctor Dieter Dumkopf, Archibald's mentor who appears only in flashbacks
 * Courtney Cox as Karen Person, Penny's overbearing single mother and... a karen
 * Cloris Leachman as Penny as scared old lady she saw on the steet (cameo)