One such famous series of books that's now been turned into a feature film are the Percy Jackson and the Olympians novels.
This first outing "The Lightning Thief" features a pretty impressive cast, rivaling the Potter movies and is directed by Potter 1 & 2's Chris Columbus...
Synopsis:The cast is as follows:
A young boy named Percy Jackson (Logan Lerman) discovers that he is the demigod son of the Greek god, Poseidon (Kevin McKidd). He embarks on a journey across modern-day America with his friends Annabeth Chase (Alexandra Daddario), also a demigod, and Grover Underwood (Brandon T. Jackson), a satyr, to save his mother (Catherine Keener), return Zeus' (Sean Bean) stolen lightning bolt, and prevent a war between the gods.
* Logan Lerman as Percy Jackson, the film's protagonist, and son of Poseidon.
* Brandon T. Jackson as Grover Underwood, Percy's best friend, a satyr.
* Alexandra Daddario as Annabeth Chase, daughter of Athena.
* Jake Abel as Luke Castellan, son of Hermes.
* Rosario Dawson as Persephone, Goddess of Springtime.
* Steve Coogan as Hades, Lord of the Dead.
* Uma Thurman as Medusa.
* Catherine Keener as Sally Jackson, Percy's mother.
* Pierce Brosnan as Chiron, trainer of heroes.
* Kevin McKidd as Poseidon, God of the Sea.
* Melina Kanakaredes as Athena, Goddess of Warriors, Crafts and Wisdom.
* Chelan Simmons as Silena Beauregard, daughter of Aphrodite.
* Erica Cerra as Hera, Goddess of Marriage.
* Sean Bean as Zeus, King of the Greek Pantheon.
* Maria Olsen as Mrs. Dodds.
* Serinda Swan as Aphrodite, Goddess of Passion and Love.
* Stefanie von Pfetten as Demeter, Goddess of the Earth and Harvest.
* Tim Aas as Procrustes.
* Joe Pantoliano as Gabe Ugliano.
* Ray Winstone as Ares, God of War.
* Dimitri Lekkos as Apollo, God of the Sun, Poetry, Prophecy, Sport and Virtue.
* Luke Camilleri as Dionysus (Mr. D), God of Wine and Festivity, Director of Camp Halfblood.
And here's the trailer, see what you think.