Born with a rare condition that makes him age four times faster than normal, ten-year-old Jack Powell looks like a forty-year-old man. After years of homeschooling, he enters public school for the first time, eager to make friends and live like any other kid—only to discover that growing up too fast means learning some of life’s hardest lessons early.

Robin Williams
as Jack Powell

Diane Lane
as Karen Powell

Brian Kerwin
as Brian Powell

Jennifer Lopez
as Miss Marquez

Bill Cosby
as Lawrence Woodruff

Fran Drescher
as Dolores Durante

Adam Zolotin
as Louis Durante

Irwin Corey
as Poppy

Jurnee Smollett
as Phoebe

Ashlee Lauren
as Allison
Wuchak
_**Robin Williams as a 10 year-old; great cast, but needed a rewrite**_ The Powells in Oakland have a premature baby, whom they name Jack (Robin Williams). The problem is that Jack grows at four times the normal rate and so when he finally is allowed to enter 5th grade at the age of 10 he looks ...