Tom Hanks is to lead an all-star cast for a computer animated film called "Ant Bully" about a boy who is shrunk to insect size after he floods an ant colony.

The boy is made to work in the ruins he created until he comes to appreciate the selfless nature of the ants and learns a valuable lesson about tolerance.

According to a statement, an all-star and Academy Award-winning cast including Nicolas Cage, Julia Roberts, Meryl Streep, Paul Giamatti and Lily Tomlin will voice the film.

The movie will be released in August 2006 and will be directed by John A. Davis, writer and director of "Jimmy Neutron: Boy Genius".